<div data-slate-type="paragraph">In mathematics, a percentage is a number or ratio that represents a fraction of 100. It is often denoted by the symbol &quot;%&quot; or simply as &quot;percent&quot;. For example: If 50% of the total number of students in the class are male, that means that 50 out of every 100 students are male. If there are 500 students, then 250 of them are male. The percent value is computed by multiplying the numeric value of the ratio by 100. For example, to find 50 apples as a percentage of 1250 apples, first, compute the ratio 50/1250 = 0.04, and then multiply by 100 to obtain 4%. The percent value can also be found by multiplying first, so in this example, the 50 would be multiplied by 100 to give 5,000, and this result would be divided by 1250 to give 4%. To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is: 50/100 × 40/100 = 0.50 × 0.40 = 0.20 = 20/100 = 20%. </div><blockquote data-slate-type="blockuote">Percentage increase and decrease</blockquote><div data-slate-type="paragraph">Due to inconsistent usage, it is not always clear from the context what a percentage is relative to. When speaking of a &quot;10% rise&quot; or a &quot;10% fall&quot; in a quantity, the usual interpretation is that this is relative to the initial value of that quantity. For example, if an item is initially priced at $200 and the price rises 10% (an increase of $20), the new price will be $220. Note that this final price is 110% of the initial price (100% + 10% = 110%). </div><blockquote data-slate-type="blockuote">Some other examples of percent changes:</blockquote><div data-slate-type="paragraph">•	An increase of 100% in a quantity means that the final amount is 200% of the initial amount (100% of initial + 100% of increase = 200% of initial); in other words, the quantity has doubled. •	An increase of 800% means the final amount is 9 times the original (100% + 800% = 900% = 9 times as large). •	A decrease of 60% means the final amount is 40% of the original (100% – 60% = 40%). •	A decrease of 100% means the final amount is zero (100% – 100% = 0%). </div><div data-slate-type="paragraph">In general, a change of x percent in a quantity results in a final amount that is 100 + x percent of the original amount (equivalently, (1 + 0.01x) times the original amount).</div><div data-slate-type="paragraph"> </div><div data-slate-type="paragraph">आप सवालों को जल्दी और आसान तरीके से solve करने के लिए निचे दिए हुए video को भी देख सकते है |</div><div data-slate-type="paragraph"> </div>

Learn the basics of percentage. Know how to calculate percentage change without craming any formulaes for RRB NTPC, RRB Group D, Bank PO, SSC CGL Exam.

Percentage

This is a part of 75 day plan <a href="https://examlounge.com/blogs/75-Days-Study-Plan-SSC-CHSL-2020" target="_blank"><ins>(Click here)</ins></a> . To download these questions as pdf <a href="https://cdn.examlounge.com/resources/images/Day56_quant_372386691Z46UV.pdf" target="_blank"><ins>(Click Here) </ins></a><ins> </ins>or Attempt this as Quiz<a href="https://examlounge.com/tests?selectedExam=SSC_CHSL" target="_blank"> <ins>(Click Here)</ins></a> Answers to all the questions are provided at the bottom of the Blog.&nbsp;

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<ins>Practice Problems</ins>&nbsp;
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Improve your problem solving skills with practice questions on Algebra. Practice questions with detailed solution for SSC CHSL and SSC CGL Exams

Algebra Practice Questions Day 56

This is a part of 75 day plan <a href="https://examlounge.com/blogs/75-Days-Study-Plan-SSC-CHSL-2020" target="_blank"><ins>(Click here)</ins></a> . To download these questions as pdf <a href="https://cdn.examlounge.com/resources/images/Vocabulary_day75_424084705MCF56.pdf" target="_blank"><ins>(Click Here)</ins></a> or Attempt this as Quiz<a href="https://examlounge.com/tests?selectedExam=SSC_CHSL" target="_blank"> <ins>(Click Here)</ins></a> Answers to all the questions are provided at the bottom of the Blog.&nbsp;

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 ONE WORD SUBSTITUTION 1. A person who is very selective, disgusted easily and is hard to please - Fastidious 2. An error or misprint in printing or writing - Erratum 3. A person extremely desirous of money - Avaricious 4. Speech delivered without preparation – Extempore 5. One who will do any job for anyone for money – Mercenary 6. A child born after the death of father – Posthumous 7. A person who completely abstains from alcohol – Teetotaller 8. One who is able to use both hands – Ambidextrous 9. Chief of a group of workmen – Foreman 10. Bitter quarrel between two families existing for a long period – Feud IDIOMS AND PHRASES 1. Teething problems– Difficulties at the start 2. A wild goose chase – Fruitless pursuit 3. To get into hot water – To get into trouble 4. A bolt from the blue – A complete surprise 5. Plain sailing – Very easy 6. Take to one’s heel – Run off 7. To cut one short – To criticize one 8. Show the white flag – T o surrender 9. A cut above – Rather superior to 10. To throw dust in one’s eye – To deceive ANTONYMS 1. EFFEMINATE - MANLY 2. HOSTILE - FRIENDLY 3. CACOPHONY - HARMONY 4. APPROPRAITE - UNDESERVED 5. TAINT - PURIFY 6. DEMOLISH - ESTABLISH 7. DEPTH - SHALLOW 8. MAVERICK - CONVENTIONAL 9. ENDANGERED- PROTECTED 10. CLEAR - NEBULOUS / OPAQUE &nbsp;

Improve your Vocabulary with daily lessons. Practice questions with detailed solution for SSC CHSL and SSC CGL Exams

Daily Vocabulary Lessons Day 75

This is a part of 75 day plan <a href="https://examlounge.com/blogs/75-Days-Study-Plan-SSC-CHSL-2020" target="_blank"><ins>(Click here)</ins></a> . To download these questions as pdf <a href="https://cdn.examlounge.com/resources/images/Day75_GEOMETRY_882483839HRGP6.pdf" target="_blank"><ins>(Click Here)</ins></a> or Attempt this as Quiz<a href="https://examlounge.com/tests?selectedExam=SSC_CHSL" target="_blank"> <ins>(Click Here)</ins></a> Answers to all the questions are provided at the bottom of the Blog.&nbsp;

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<ins>Practice Problems</ins> Question 1: Each interior angle of a regular polygon is three times its exterior angle, then the number of sides of the regular polygon is? A: 9 B: 8 C: 10 D: 7 Question 2: The sum of all interior angles of a regular polygon whose one exterior angle is 20? A: 6440 B: 3200 C: 2880 D: 1440 Question 3: Measure of each interior angle of a polygon can never be? A: 150 B: 105 C: 108 D: 144 Question 4: PQRST is a cyclic pentagon and PT is a diameter, then angle PQR + angle RST is equal to? A: 180 B: 270 C: 216 D: 144 Question 5: The side AB of a parallelogram ABCD is produced to E in such a way that BE=AB. DE intersects BC at Q. The point Q divides BC in the ratio? A: 1:2 B: 1:1 C: 2:3 D: 2:1 Question 6: In a parallelogram PQRS, angle P is four times of angle Q, then the measure of angle R is? A: 144 B: 36 C: 72 D: 130 Question 7: ABCD is a cyclic quadrilateral with angle A = 50, angle B =80 then angle C and angle D are? A: 100,130 B: 115,115 C: 110,120 D: 130,100 Question 8: A quadrilateral ABCD circumscribes a circle and AB= 6cm, CD = 5cm and AD = 7cm. The length of BC is? A: 4 B: 5 C: 3 D: 6 Question 9: ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and angle ADC = 140. The angle BAC is equal to? A: 38 B: 40 C: 50 D: 60 Question 10: ABCD is a rhombus. A straight line through C cuts AD produced at point P and AB produced at Q. If DP = ½ AB, then the ratio of the length of BQ and AB is? A: 2:1 B: 1:2 C: 1:1 D: 3:1 Answers and Solutions 1:- B, 8 2:- C, 2880 3:- B, 105 4:- B, 270 5:- B, 1:1 6:- A, 144 7:- D, 130,100 8:- A, 4 9:- C, 50 10:- A, 2:1

Test your problem solving skills with practice questions on Geometry. Practice questions with detailed solution for SSC CHSL and SSC CGL Exams

Geometry Practice Questions Day 75

This is a part of 75 day plan <a href="https://examlounge.com/blogs/75-Days-Study-Plan-SSC-CHSL-2020" target="_blank"><ins>(Click here)</ins></a> . To download these questions as pdf <a href="https://cdn.examlounge.com/resources/images/Day37_quant_827441004P4VM5.pdf" target="_blank"><ins>(Click Here) </ins></a><ins> </ins>or Attempt this as Quiz<a href="https://examlounge.com/tests?selectedExam=SSC_CHSL" target="_blank"> <ins>(Click Here)</ins></a> Answers to all the questions are provided at the bottom of the Blog.&nbsp;

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<ins>Practice Problems</ins> Question 1: 8 men and 4 women can complete a piece of work in 6 days. Work done by a men is double the work done by a women. If 8 men and 4 women started working and after 2 days 4 men left and 4 women joined. In how many days work will be completed A: 5 B: 6 C: 8 D: 4 Question 2: A and B can do a work in 8 days’ alone can do it in 24 days. In how many days an alone can do the same work? A: 10 B: 9 C: 12 D: 14 Question 3: A can do ½ of a work in 9 days while B can do 1/3 of a work in 6 days. How long would it take for A and B together to complete the work? A: 8 B: 9 C: 10 D: 7 Question 4: A can do a work in 12 days and B can do it in 16 days. A and B started the work jointly and A left 2 days before the work is finished. Find the no. of days they took to finish the work? A: 6 B: 7 C: 9 D: 8 Question 5: Rita, seta and Meeta are employed to do a piece of work for 625Rs Rita and Sita together are supposed to do 17/23 of the work. What should Meeta be paid? A: 162.04 B: 163.04 C: 161.04 D: 165 Question 6: Sonu can do a piece of work in 20 days .He started the work and left after some days, while 25% work was done. After it Abhijeet joined and completed it in 10 days. In how many days Sonu and Abhijeet can do working together? A: 6 B: 8 C: 10 D: 12 Question 7: Efficiency of asha is 25% more than usha and usha takes 25 days to complete a work. Asha started to work alone and then usha joined her 5 days before actual completion of work .For how many days Asha worked alone? A: 9 B: 10 C: 11 D: 15 Question 8: Krishna can do a work in 10 days while Mohan can do the same work in 20 days. They started work together. After 3 days Krishna left the work and Mohan completed it .For how many days Mohan worked alone more than the number of days required when both worked together? A: 13/3 B: 13/4 C: 13/5 D: 11/3 Question 9: Kareena and Karishma can do a piece of work in 9 and 18 days. They started the work, but after 3 days saheed joined the work who alone can complete the work in 3 days. Total days in which work is completed? A: 12 B: 8 C: 6 D: 4 Question 10: Fatima and Zahira can do a piece of work in 12 days and 15 days respectively. If they work alternatively and Fatima starts the work, then in how many days the work will be completed? A: 61/5 B: 53/4 C: 66/5 D: 15 Answers and Solutions 1:-A, 5 2:-C, 12 3:-B, 9 4:-D, 8 5:-B, 163.04 6:-B, 8 7:-C, 11 8:-A, 13/3 9:-D, 4 10:-B, 53/4

Improve your problem solving skills with practice questions on time and work. Practice questions with detailed solution for SSC CHSL and SSC CGL Exams

Time and Work Practice Questions Day 37

This is a part of 75 day plan <a href="https://examlounge.com/blogs/75-Days-Study-Plan-SSC-CHSL-2020" target="_blank"><ins>(Click here)</ins></a> . To download these questions as pdf <a href="https://cdn.examlounge.com/resources/images/Day74__GEOMETRY_911867166QOFEA.pdf" target="_blank"><ins>(Click Here)</ins></a> or Attempt this as Quiz<a href="https://examlounge.com/tests?selectedExam=SSC_CHSL" target="_blank"> <ins>(Click Here)</ins></a> Answers to all the questions are provided at the bottom of the Blog.&nbsp;

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<ins>Practice Problems</ins> Question 1: In a triangle ABC, D and E are two mid points of sides AB and AC respectively. If angle BAC = 40 and angle ABC = 65, then angle CED is? A: 130 B: 75 C: 25 D: 105 Question 2: D and E are two points on the side AC and BC respectively of ΔABC such that DE = 18cm and CE = 5cm and angle DEC = 90. If tan ABC = 3.6, then AC: BD? A: BC:2CE B: 2CE:BC C: 2BC:CE D: CE:2BC Question 3: In ΔABC, AD is perpendicular to BC and AD² = BD.DC. The measure of angle BAC is? A: 60 B: 75 C: 90 D: 45 Question 4: In ΔABC, AB=BC=K, AC = √2K, then ΔABC is a? A: isosceles B: right angled C: equilateral D: right isosceles triangle Question 5: G is centroid of the triangle ABC, where AB, BC and CA are 7cm, 24cm and 25cm respectively, then BG is? A: 19/3 B: 25/3 C: 11/2 D: 25/2 Question 6: ΔABC and ΔDEF are similar. Also angle A = angle d and angle B = angle E. If 4AB = DE and BC = 12cm, then EF is equal to? A: 3 B: 24 C: 16 D: 48 Question 7: ABCD is a rectangle where the ratio of the length of AB and BC is 3:2. If P is the mid-point of AB, then the value of sinCPB is? A: 3/5 B: 2/5 C: 3/4 D: 4/5 Question 8: The length of the two adjacent sides of a rectangle inscribed in a circle are 5cm and 12 cm respectively. Then the radius of the circle will be? A: 6 B: 6.5 C: 8 D: 8.5 Question 9: PQRS is a rectangle in which side of PQ = 24cm and qr = 16cm. T is a point on RS. What is the area of the triangle PTQ? A: 192 B: 162 C: 148 D: Cannot be determined Question 10: ABCD is a square and CDE is an equilateral triangle outside the square. What is the value of angle BEC? A: 15 B: 30 C: 25 D: 10 Answers and Solutions 1:- D, 105 2:- C, 2BC:CE 3:- C, 90 4:- B, right angled 5:- B, 25/3 6:- D, 48 7:- D, 4/5 8:- B, 6.5 9:- A, 192 10:- A, 15

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