SBI Clerk 2018: Quantitative Aptitude Quiz for Prelims – 26

Hello and welcome to exampundit. Here is a set of Quantitative Aptitude Quiz on Simple Interest based problems for Prelims exam of SBI Clerk 2018.

SBI Clerk 2018 Quantitative Aptitude Quiz

1. Anil invested an amount for three years at a simple interest rate of 9 p.c.p.a. He got an amount of Rs. 19050 at the end of three years. What principal amount did he invest?
1)14500
2)11050
3) 10950
4) 15000
5) None of these

Answer & Solutions

Option: 4

Explanation:  (P * 3 * 9)/100 = (19050 – P)
P= 15000

 

2. Mr. Roy invested an amount of Rs. 21250 for 6 years. At what rate of simple interest will he obtain the total amount of Rs. 26350 at the end of 6 years?
1) 6
2) 5
3) 8
4)12
5) None of these

Answer & Solutions

Option: 5

Explanation: Simple Interest= 26350 – 21250= 5100
R= (5100 * 100)/ (21250 * 6) = 4

 

3. Maya deposited an amount of Rs. 17800 and obtained Rs. 31648 at the end of 6 years. What was the rate of interest per year?
1)14.5
2)11
3) 12.5
4) 13
5) None of these

Answer & Solutions

Option: 4

Explanation: Simple Interest = 31684 – 17800 = 13884
R = (13884 * 100)/ (17800 * 6) = 13

 

4. Mr. Dixit invested an amount of Rs. 24200 at the rate of 4 p.c.p.a for 6 years to obtain a simple interest. Later he invested the principal amount as well as the amount obtained as simple interest for another 4 years at the rate of same interest. What amount of simple interest will he obtain at the end of the last 4 years?
1) 4800
2)4850.32
3)4801.28
4) 4700
5) None of these

Answer & Solutions

Option: 3

Explanation: Simple Interest = (24200 * 4 * 6)/100
= 5808
Total amount= 24200 + 5808 = 30008
Simple interest= (30008 * 4 * 4)/ 100 = 4801.28

 

5. What would be the simple interest obtained on an amount of Rs. 11975 at the rate of 8 p.c.p.a. after 7 years?
1)4704
2) 5705
3) 6706
4) 7707
5) None of these

Answer & Solutions

Option: 3

Explanation: (11975 * 8 *7)/100 = 6706

 

6. In one year, if the ratio of principal and total amount becomes 8: 9, find the rate of interest.
1) 12.5
2) 10.5
3) 11.5
4) 13.5
5) None of these

Answer & Solutions

Option: 1

Explanation: Principal: Amount= 8: 9
Simple interest = 9-8 = 1
Rate= (1 * 100)/ 8 = 12.5

 

7. Find the rate of interest so that in 10 years a sum of money becomes 7 /5 times the original sum.
1)4
2) 5
3) 6
4) 8
5) None of these

Answer & Solutions

Option: 1

Explanation: Amount= 7/5 * principal
Suppose principal be 100
Then Amount will be = 7/5 * 100= 140
Simple interest= 140 – 100= 40
Rate= (40 * 100)/ ( 100* 10) = 4

 

8. Simple interest on a certain sum is 9 /16 th of the sum. Find the rate of interest if time and rate of interest both are numerically same.
1) 8.5
2) 7
3) 7.5
4) 8
5) None of these

Answer & Solutions

Option: 3

Explanation: Simple Interest= 9/16 * Principal
Rate= (9/16 * P * 100) P * Time
Rate* Rate= 9/16*100 [Rate= Time] Rate= 30/4 = 7.5

 

9. A sum of money when invested at simple interest amounted to 5 times of itself after 16 years; it will become 10 times itself after how many years?
1) 30
2) 36
3) 32
4) 40
5) None of these

Answer & Solutions

Option: 2

Explanation: Amount 5 times in 16 years
5 – 1 = 4 = simple interest
10 times amount means 10-1 = 9 = simple interest
Simple interest 4 will be in = 16 years
Simple interest 9 will be in = (16*9)/4 = 36

 

10. A sum of money becomes thrice itself at simple interest after 20 years. Find the rate of interest.
1) 12
2)15
3) 10
4)18
5) None of these

Answer & Solutions

Option: 3

Explanation: Sum of money = 3 times
Principal = 1 Amount= 3 Simple interest = 3- 1=2
Rate= ( 2 * 100)/ ( 1 * 20) = 10

 

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