PERCENTAGE, SIMPLE INTERSET & COMPOUND INTEREST

1. Convert following into Ratio:

1.6623

%

2.1119

%

3.3313

%

2. Convert following into Percentage:

1. 38

2.116

3. 0.053. Solve following: 1. 0.05 is what percentage of 20---- 2. 12 is 0.2% of----- 3. 97.6% of 25----- 4. What percent of 96 is 8 --------- 5. What percent is 150 ml of 2 liters-----

6. What percent of 27

is 135

--------

7. What percent is 3% of 5%------- 8. What percent of 7.2 kg is 18 gms------4. Solve following:

1. A number decreased by 2712

% gives 87.The number is

2. A number increased by 3712

% gives 33. The number is

3. If 37 % of a number is 900, then 6212

% of the number will be

4. 25% of a number is less than 18% of 650 by 19. The number is5. By how much percent is four- fifth of 70 lesser than five- seventh of 1126. When 40% of a number is added to 42, the result is the number itself. the number is7. If 11% of a number exceeds 7% of the same by 18, the number is5 In an election, one of the two candidates got 30% of the total votes polled, but he by 210 votes. What was the total number of votes polled?a] 525 b] 700 c] 610 d] 300 e] 520

6. If the price of sugar is increased by 7% then by how much per cent should a housewife reduce her consumption of sugar, to have no extra expenditure?a] 7 over 107% b] 107 over 100% c] 100 over 107% d] 7% e] 93 over 100%7. In Mathematics examination, a student scored 30% in the first paper of 180% marks. How much % marks should he score in the second paper of 150 marks if he is to get an overall percentage of at least 50%a] 20 b] 74 c] 30 d] 65 e] 708. Fill in the blanks:No. Principal(p) No. of periods(N) no. of Interest (R) simple interest (SI) amount(A)1. ______ 6 years 5% 1230 ______2. 800 9 Month 6% ___ _______

3. _____ 5 years ____ _____ 54

P

4. 5000 73 Days 10% ______ _____

5. _____ 2 Years ____ 110

P _____

9. A sum of money placed at simple interest doubles in 8 year. Find the rate of interest.a] 8% p.a. b] 10 % p.a. d] Depends on principal e] None of these c] 12.5%p.a10. What quarterly payment will discharge a debt of Rs. 2280 DUE IN TWO YEARS AT 16% P.A. simple interest?a] Rs. 1000 b] Rs. 1600 c] Rs. 250 d] Rs. 360 e] Rs. 45011. The difference between interest on Rs. 5000 at the rate 5% p.a. for 6 month and on Rs. 3000 at the rate 3% p.a. for 4 month isa] Rs. 105 b] Rs.95 c] Rs. 120 d] Rs 170 e] None of these12. Fill in the blanks:No. princepal(p) no.periods(n) rate of interests compounding compound interest1. 6250 2 years 8% annually ______2. 5000 1 years 12% half yearly ______3. 1000 2 year 3 month 10% annually ______4. 5000 6 month 12% quarterly _______5. ____ 3 years 10% annually 33113.A certain sum at simple amounts to Rs.1040 in years and Rs.1360 in 7 years. then the sum is:a] 750 b]800 c]900 d] None of these e] Cannot determine

14. Due to fall in the rate of interest from 13% p.a. to 1212

% p.a. lender’s yearly income

diminishes by Rs.104 his capital is

a] 21400 b] 20800 c] 22300 d] 24000 e] None of these

15.The population of a town increases by 5% annually. If it is 15435 now, its population

2 years ago was:

a] 14000 b] 15000 c]13700 d] 14800 e] None of these

16. The value of a machine depreciates at the rate of 16% per annum. If the price of a

new machine is Rs. 62500, its value after 3 years (in rupees) will be

a] 32500 b] 36054 c] 37044 d] 38400 e] None of these

SOLVE@HOME

1. Three are 850 students in a class. Out of these, 44% play cricket, 28% play

football, 10% play baseball and remaining students play kabaddi. How many

students play kabaddi?

a] 173 b] 143 c] 153 d] 163 e] 133

2. Which number is 40% less than 360?

a] 90 b] 144 c] 216 d] 270 e] 288

3. If a= bdc :b, c and d are each increased by 10%, then by how much does ‘a’

increase?

a] 10% b] 11% c] 20% d] 21% e] None of these

4. On account of a hike in the prices of onions by 20%, a housewife decides to

reduce her consumption of onions to save herself from tears. By what percent should

she reduce her consumption so that the expenditure remains unchanged?

a] 15% b] 1623

% c] 20% d] 25% e] None of these

5. A piece of cotton cloth 20 m long, shrinks by 0.5% after washing. The length of

the cloth after washing is

a] 19.5 m b] 19.9 m c] 19.95 m d] 19.92 m e] 19.05 m

6. The percentage by which 120 is to be diminished to get 90 is

a] 30 b] 25 c] 20 d] 3313

e] None of these

7. A number exceeds by 40 when added by 20% of itself. the number is

a] 200 b] 60 c] 80 d] 320 e] 120

8. On retirement, a person gets 1.53 lakhs of his provident fund which he invests in

a scheme at 20% p.a. his monthly income from this scheme will be

a] 2450 b] 2500 c] 2550 d] 2600 e] 2700

9. A sum of money doubles itself in 10 years at simple interest. in how many years would it treble itself?

a] 10 b] 15 c] 20 d] 25 e]None of these 10. A medical student has to secure 40% marks to pass. He gets 80 and fails by 60 marks. Find the maximum marks. a] 150 b] 250 c] 350 d] 450 e] 500