# Aptitude Questions: Simple Interest Set 6

Hello Aspirants. Welcome to Online Quants Quiz in AffairsCloud.com. Here we are creating question sample in Simple Interest, which is common for all the IBPS, RRB exam and other competitive exams. We have included Some questions that are repeatedly asked in exams !!

Questions Penned by Yohit

1. A lent 2000rs to B at 8% annual rate of interest and some amount to C at same rate of interest for same period of time. If after 5 years, A got a total of 1500 rupee as interest. Find the sum lent to C.
a) 1500
b) 1650
c) 1700
d) 1750
Solution: 1500 = 2000*(8/100)*5 + X*(8/100)*5

2. At what percent per annum will be SI on sum of money is equal to 3/5 of the amount in 5 years.
a) 10%
b) 20%
c) 30%
d) 40%
Solution:
Sol => SI = 3/5(SI +P)
(P*R*5)/100 = 3/5[(P*R*5)/100 + P]
R =30

3. Priya borrows 1000 rupees at the rate of 11% per annum on SI and rahul borrows 780 rupees at the rate of 15% per annum on SI. In how many years will the amount of debt of priya and rahul be equal.
a) 31.3/7 yrs
b) 31.2/7yrs
c)32.1/7yrs
d) 32.2/7yrs
Solution:
1000 + 1000*(11/100)*T = 780 + 780*(15/100)*T

4. The simple interest on a certain sum is 4/9 of the principal and the numbers of years is equal to the rate of interest. The rate of interest is.
a) 20/3
b) 10/3
c) 13/3
d) 14/3
Solution:
4/9*P = P*R/100*R

5. A sum of 8000 rupees is divided between two people A and B at the rate of interest of 4% and 5% respectively. The total interest earned after 2 years is equal to 750. Then find the ratio of investment between A and B.
a) 3:11
b) 5:11
c) 6:11
d) 7:11
Solution:
Let A get X rupees and B get 8000-X rupees.
750 = X*(4/100)*2 + (8000-X)*(5/100)*2
X =2500 and 8000-2500 = 5500
Ratio 5:11

6. A part of 2000 is lent at 6% per annum and rest sum is lent at 8% per annum. If total interest earned after 4 years is 500. Then the sum lent at 8%.
a) 250
b) 350
c) 450
d) 550
Solution:
Let sum lent at 8% is X
500 = X*(8/100)*4 + (2000-X)*(6/100)*4

7. Sohan invested 20000 rupee in fixed deposit at the rate of 10% simple interest. After every 3 rd year he added interest to principal. Find the interest earned at the end of 6th year.
a) 7800
b) 8000
c) 7600
d) 8200
Solution:
For the first 3 years SI will be = 20000*10/100*3 = 6000
Now he add 3000 to the principal i.e = 20000+6000 = 26000
Now interest earned at end of 6th year = 26000*10/100*3 = 7800

8. A statue of 550BC is priced at 15000 rupees. But a person wants instalment on the statue. So he gaves 10000 rupee cash and make an instalment of rupees 650 for 8 months. Find the rate of interest charged by the shopkeeper.
a) 4%
b) 6%
c) 8%
d) 10%
Solution:
Total amount buyer pays = 10000 + 650*8 = 15200
So to find the interest rate, 200 = 5000*(8/12)*R/100
So r= 6%.

9. Rs. 12000 was invested for 2 years, partly in scheme A at the rate of 5% SI per annum and partly in scheme B at the rate of 8% SI per annum. The total interest received at the end was Rs.1800. What amount of money was invested in scheme A ?
a) 2000
b) 1600
c) 3200
d) 4200
Solution:
x *5*2/100 + (12000-x)*2*8/100 = 1800
x/10 + 192000-16x/100 = 1800
10x+192000-16x=180000
6x = 12,000
X=2000

10. A sum was put at a certain rate of interest for four years. Had it been put at a rate of interest 4% higher than the previous rate of interest, it would have fetched Rs. 80 more. What is the sum ?
a) 450
b)500
c)700
d)475