Deck 4: Simple Interest and Installment Calculations

Question 1

Ram gets Rs. 2600 for Rs. 2000 in 5 years at some rate of simple interest. Had he invested inother places where rate of simple interest is 3% more than current rate, how much would haveRam got in same time?

A)rs. 2900
B)rs. 3000
C)rs. 3100
D)rs. 2800

Answer 1

rs. 2900

Question 2

Guddi invested some money in a bank at rate of 6% per annum. At simple interest, after 9 years, she got Rs. 8470. How much did she invest?

A)rs. 5250
B)rs. 6550
C)rs. 6400
D)rs. 5500

Answer 2

rs. 5500

Question 3

Aman got a salary of Rs. 8600. The salary was invested by him in two parts. Find thedifference between the two parts of his salary, if in first part he got some simple interest at 15%per annum in 4 years, which was same as the second part which he invested at 20% for 3 years.

A)rs. 0
B)rs. 2400
C)rs. 100
D)rs. 4500

Answer 3

rs. 0

Question 4

Aman invests Rs. 8000 at some rate of interest. Being simple interest the money doubles in 5years. Raj sees this and invests Rs. 6250 for 3 years at same rate of interest. How much interestdoes Raj get?

A)rs. 3750
B)rs. 6250
C)rs. 3125
D)rs. 4250

Question 5

If simple interest for 2 years for a sum is Rs. 600 and compound interest for the same sum for 2 years and same rate of interest is Rs. 645, what will be the rate of interest?

A)10%
B)15%
C)30%
D)5%

Question 6

In 4 years the simple interest on certain sum of money is 9/25 of the principal. The annual rate of interest is

A)4%
B)4(1/2)%
C)9%
D)10%

Question 7

A sum becomes Rs. 3000 at the rate of 12% per annum (simple interest). The same sumbecomes Rs. 3300 at the rate of 15% per annum (simple interest) in the same duration. Find thesum and the duration.

A)rs. 2000 and 20 years
B)rs. 1900 and 8.25 years
C)rs. 1500 and 7 years
D)rs. 1800 and 5.5 years

Question 8

An amount becomes 7 times in 15 years. In how many years will the same amount become 10 times? The rate of interest remains the same for both cases.

A)20 years
B)18.75 years
C)22.50 years
D)21.50 years

Question 9

In 40 years an amount becomes 6 times the original amount. What is the rate of interest?

A)12.5%
B)24%
C)6.67%
D)34%

Question 10

A TV can be bought for Rs. 20000 cash or by paying in four equal monthly installments withan initial down payment of Rs. 4000. If the rate of interest for this facility is 8% per annum, thenwhat would be the installment charged for each month?

A)rs. 4000
B)rs. 4106.67
C)rs. 4050.33
D)rs. 4066.01

Question 11

How much should be the annual installment to completely pay off a debt of Rs. 1078 in 6 years at 9% per annum rate of interest?

A)rs.146.35
B)rs.156.25
C)rs.126.55
D)rs.118.35

Question 12

Rs. 20400 was divided in two parts and then invested. One part invested at 6.25% for 8 yearsyields the same interest as the other part invested at 7% for 5 years. What is the value of smallerpart?

A)9600
B)8400
C)10100
D)6500

Question 13

1/5 part of an amount was given at 3% simple interest, 1/3 part was given at 5% simpleinterest, 2/5 parts at 9% simple interest and remaining part at 11% simple interest. The totalinterest received was Rs.297. How much amount was originally given?

A)4500
B)5500
C)3950
D)4200

Question 14

A man got Rs. 130 less, as simple interest, when he invested Rs. 2000 for 4 years as compared to investing Rs. 2250 for same duration. What is the rate of interest?

A)12%
B)13%
C)12.5%
D)10.50%

Question 15

Find the principal which yields a simple interest of Rs. 20 and compound interest of Rs. 21 in two years, at the same percent rate per annum?

A)rs. 520
B)rs. 480
C)rs. 420
D)rs. 200

Question 16

A sum of Rs. 4000 amounts to Rs. 4600 in 5 years at a certain rate of simple interest. What would be the amount, if the rate of interest is increased by 3 %.

A)rs. 4900
B)rs. 5000
C)rs. 5200
D)rs. 5600

Question 17

Akhil borrowed a certain sum of money at the rate of 6%, 9% and 14% for a period of firsttwo years, next three years and beyond the period of five years respectively. If at the end of nineyears, he paid Rs. 8550 as interest, then find the sum of money he had borrowed.

A)rs. 9,000
B)rs.14,000
C)rs.15,000
D)rs.18,000

Question 18

r. Karan borrowed a certain amount at 6% per annum simple interest for 9 years. After 9 years, he returned Rs. 8110/-. Find out the amount that he borrowed.

A)rs. 4,900
B)rs. 5,000
C)rs. 5,100
D)rs. 5266

Question 19

In how many years, Rs. 200 will produce the same interest @ 5 % as Rs. 900 produce in 2 years @ 3 ½ %?

A)6.3 years
B)8.2 years
C)9 years
D)12 years

Question 20

certain sum earns simple interest of Rs. 800 in 2 years at a certain rate of interest. If the samesum earns compound interest of Rs. 845 in the same period of 2 years, What must be the rate ofinterest?

A)5% p.a.
B)7.5% p.a.
C)10% p.a.
D)12.5% p.a.

Question 21

Find the simple interest on Rs. 78000 at 15(2/5) % per annum for 9 months.

A)rs. 7804
B)rs. 8979
C)rs. 8046
D)rs. 9009

Question 22

Simple interest at x% for x years will come out to be Rs x on a sum of Rs?

A)x
B)100/x
C)100/x2
D)100x

Question 23

What is the minimum number of years upon which SI on Rs 2600 at 6.67% interest rate will be in whole number?

A)2
B)6
C)3
D)4

Question 24

What time will be taken by an amount of Rs. 900 to yield Rs. 81 as interest at 4.5% per annum of simple interest?

A)2 years
B)1 years
C)3 years
D)4 years

Question 25

Operation research approach is

A)multi-disciplinary
B)artificial
C)intuitive
D)all of the above