Summary

This document contains a set of percentage problems. The problems include the calculation of the percentage of various amounts, finding rates of increase and decrease, and percentage calculations in different contexts.

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Class 04 Percentage 1. There are two types of animals in a room some are [A] 1000 [B] 2000 [C] 1700 [D] 1500 cat and some are Dogs. Each cat takes 7 biscuits and each Dog takes 9 biscuits. If 355 biscuits are 4. The pop...

Class 04 Percentage 1. There are two types of animals in a room some are [A] 1000 [B] 2000 [C] 1700 [D] 1500 cat and some are Dogs. Each cat takes 7 biscuits and each Dog takes 9 biscuits. If 355 biscuits are 4. The population of town at present is 5000. If males eaten by 45 animals. Find the no. of Cats and are increased by 6% and females are increased by 14%. Then population will become 5540 after 1 year. Dogs. Find the no. of males at present./ [A] 20, 25 [B] 25, 27 [C] 30, 33 [D] 35, 37 [A] 2230 [B] 2000 [C] 2620 [D] 2830 2. In a zoo, there are rabbits and pigeons. If the heads are counted there are 280 and if legs are counted 5. The population of a village was 9600. If the males there are 820. How many pigeons are there ?/ and females are increased by 8% and 5%. Then population will become 10, 272 after 1 year. Find the number of males at present./ [A] 130 [B] 180 [C] 150 [D] 190 1. There are two types of animals in a room some are cat and some are Dogs. Each cat takes 7 biscuits and each Dog takes 9 biscuits. If 355 biscuits are [A] 6400 [B] 6500 [C] 3200 [D] 3600 eaten by 45 animals. Find the no. of Cats and Dogs./ 6. The population of a village was 9800. In a year, with the increase in population of males by 8% and that of females by 5%, the population of the village became 10458. What was the number of males in the village before increase? / [A] 20, 25 [B] 25, 27 [C] 30, 33 [D] 35, 37 2. In a zoo, there are rabbits and pigeons. If the heads are counted there are 280 and if legs are counted there are 820. How many pigeons are there ? (a) 4200 (b) 5600 (c) 4410 (d) 6048 7. Total population of a city is 9500 male population is increased by 14.2% and female population is increased by 17.7% and total population of twon becomes 11003 if out of total male population 15% are boys and out of total female population 18% [A] 130 [B] 180 [C] 150 [D] 190 are girls. find difference between numbers of boys 3. The population of a town is 6000. If males are in- and girls? / creased by 5% and female are increased by 9%. Then population will become 6500 after 1 year. Find the number of males and females at present ?/ (a) 26 (b) 27 (c) 28 (d) 29 FOLLOW RAKESH YADAV SIR ON SOCIAL MEDIA 1 8. In 2010, a library contained a total of 11500 books in tow categories - fiction and non - fiction. In 2015, the library contained a total of 12760 books in these two categories. During this period, there was 10% increase in the ficition category while there was 12% increase in the non-fiction category. How many fic- (a) Rs. 5280 (b) Rs. 4720 tion books were in the library in 2015%. / (c) Rs. 62890 (d) Rs. 8428 1. 40% are the passing marks. A students gets 250 marks yet fails by 38 marks. What is the maxi- mum marks?/ (a) 6600 (b) 6160 (c) 6000 (d) 5500 [A] 720 [B] 750 [C] 800 [D] 940 9. A man borroued Rs. 16000 from two persons paid 2. If a student scores 25% marks then he is failed by 6% interest to one and 10% p.a to another. In one 210 marks. But if he score 55% marks then he is year he paid Rs. 1120 interest. How much he bor- passed with 240 marks. Find the passing % ? row at each rate. [A] 39% [B] 50% [C] 45% [D] 35% (a) 10000,6000 (b) 12000,4000 3. If a student score 36% marks then he is failed by 32 (c) 11000,5000 (d) 12500,3500 marks, but when he scores 48% marks then he is 10. If sales man purchase a watch and wall clock for passed by 64 marks. Find passing % :/ Rs. 390 He sells than making profit of 10% on watch and15% on wall clock. He earus a profit of Rs. 51.5. Difference between their original prices? / [A] 40% [B] 50% [C] 30% [D] 60% 4. When a student score 40% marks then he is failed by 50 marks. But when he score 50% mark then he is passed with 40 marks. Find passing % :/ (a) 80 (b) 110 (c) 120 (d) 160 11. A man borrowed a total amount of Rs. 30,000, A part of it on SI @ 12% per annum & remaining on 5 9 SI @ 10% p.a. If at the end of 2nd year, he paid in (a) 45 % (b) 47 % 9 5 all Rs. 36,480 to settle the loan amount what was the amount borraved at 12% per annum. 2 1 (c) 40 % (d) 42 % 7 7 5. When a student scores 30% marks then he is fails by 5 marks. But when he score 40% marks then he got 10 more marks than passing marks. Find (a) 13000 (b) 11000 (c) 12000 (d) 10000 12. The total salary of Gaurav and Azam in a company (i) Maximum marks/ is Rs. 47520. If the salary of Gaurav increases by (ii) Passing %/ 23 % and Azam increases by 30% then their total salary would increase to Rs. 59928. Find the dif- 1 5 (a) 100, 35 % (b) 250, 25 % ference between their salary? 2 2 2 FOLLOW RAKESH YADAV SIR ON SOCIAL MEDIA 1 1 6. The population of a village was 9800. In a year, (c) 150, 33 % (d) 3000, 36 % with the increase in population of males by 8% 3 4 and that of females by 5%, the population of the 6. Geeta scored 30% and failed by 50 marks, while village became 10458. What was the number of Sandeep who scored 45% marks, got 25 marks males in the village before increase? / more than the minimum marks required to pass the examination. How many marks did Vimal get if he scored 64% marks? (a) 4200 (b) 5600 (c) 4410 (d) 6048 7. Total population of a city is 9500 male population is increased by 14.2% and female population is increased by 17.7% and total population of twon [A] 500 [B] 256 [C] 320 [D] 436 becomes 11003 if out of total male population 15% 7. Rajiv scored 20% marks in an exam and failed by are boys and out of total female population 18% 11 marks. If he scored 50% marks, he gets 4 marks are girls. find difference between numbers of boys more than passing marks. What is the passing and girls? / marks for the exams. [A] 21 [B] 33 [C] 50 [D] 45 (a) 26 (b) 27 (c) 28 (d) 29 8. In an examination, Anita scored 31% marks and 8. In 2010, a library contained a total of 11500 books failed by 16 marks. Sunita scored 40% marks and in tow categories - fiction and non - fiction. In 2015, obtained 56 marks more than those requried to the library contained a total of 12760 books in these pass. Find the minimum makrs required to pass. two categories. During this period, there was 10% increase in the ficition category while there was 12% increase in the non-fiction category. How many fic- tion books were in the library in 2015%. / [A] 3156 [B] 264 [C] 3944 [D] 7100 4. The population of town at present is 5000. If males are increased by 6% and females are increased by 14%. Then population will become 5540 after 1 year. Find the no. of males at present. (a) 6600 (b) 6160 (c) 6000 (d) 5500 9. A man borroued Rs. 16000 from two persons paid 6% interest to one and 10% p.a to another. In one year he paid Rs. 1120 interest. How much he bor- [A] 2230 [B] 2000 [C] 2620 [D] 2830 row at each rate. 5. The population of a village was 9600. If the males and females are increased by 8% and 5%. Then population will become 10, 272 after 1 year. Find the number of males at present./ (a) 10000,6000 (b) 12000,4000 (c) 11000,5000 (d) 12500,3500 10. If sales man purchase a watch and wall clock for Rs. 390 He sells than making profit of 10% on watch [A] 6400 [B] 6500 [C] 3200 [D] 3600 and15% on wall clock. He earus a profit of Rs. 51.5. Difference between their original prices? FOLLOW RAKESH YADAV SIR ON SOCIAL MEDIA 3 4. When a student score 40% marks then he is failed by 50 marks. But when he score 50% mark then he is passed with 40 marks. Find passing % :/ (a) 80 (b) 110 (c) 120 (d) 160 5 9 11. A man borrowed a total amount of Rs. 30,000, A (a) 45 % (b) 47 % 9 5 part of it on SI @ 12% per annum & remaining on SI @ 10% p.a. If at the end of 2nd year, he paid in 2 1 (c) 40 % (d) 42 % all Rs. 36,480 to settle the loan amount what was 7 7 the amount borraved at 12% per annum. 5. When a student scores 30% marks then he is fails by 5 marks. But when he score 40% marks then he got 10 more marks than passing marks. Find / (a) 13000 (b) 11000 (i) Maximum marks/ (c) 12000 (d) 10000 (ii) Passing %/ 12. The total salary of Gaurav and Azam in a company 1 5 is Rs. 47520. If the salary of Gaurav increases by (a) 100, 35 % (b) 250, 25 % 2 2 23 % and Azam increases by 30% then their total salary would increase to Rs. 59928. Find the dif- 1 1 ference between their salary?/ (c) 150, 33 % (d) 3000, 36 % 3 4 6. Geeta scored 30% and failed by 50 marks, while Sandeep who scored 45% marks, got 25 marks more than the minimum marks required to pass the examination. How many marks did Vimal get (a) Rs. 5280 (b) Rs. 4720 if he scored 64% marks?/ (c) Rs. 62890 (d) Rs. 8428 1. 40% are the passing marks. A students gets 250 marks yet fails by 38 marks. What is the maxi- mum marks?/ [A] 500 [B] 256 [C] 320 [D] 436 7. Rajiv scored 20% marks in an exam and failed by 11 marks. If he scored 50% marks, he gets 4 marks more than passing marks. What is the passing [A] 720 [B] 750 [C] 800 [D] 940 marks for the exams. 2. If a student scores 25% marks then he is failed by 210 marks. But if he score 55% marks then he is passed with 240 marks. Find the passing % ?/ [A] 21 [B] 33 [C] 50 [D] 45 8. In an examination, Anita scored 31% marks and [A] 39% [B] 50% [C] 45% [D] 35% failed by 16 marks. Sunita scored 40% marks and 3. If a student score 36% marks then he is failed by 32 obtained 56 marks more than those requried to marks, but when he scores 48% marks then he is pass. Find the minimum makrs required to pass. passed by 64 marks. Find passing % :/ [A] 40% [B] 50% [C] 30% [D] 60% [A] 3156 [B] 264 [C] 3944 [D] 7100 4 FOLLOW RAKESH YADAV SIR ON SOCIAL MEDIA

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