88
Q:

# Simple interest on a certain sum is 16/25 of the sum. Find the rate percent and time, If both are numerically equal.

 A) Rate = 7% and Time = 7 years. B) Rate = 8% and Time = 8 years. C) Rate = 6% and Time = 6 years. D) Rate = 5% and Time = 5 years.

Answer:   B) Rate = 8% and Time = 8 years.

Explanation:

Let sum = X. Then S.I = 16x/25

Let rate = R% and Time = R years.

Therefore,  (x * R * R)/100 = 16x/25   =>  R = 40/5 = 8

Therefore, Rate = 8% and Time = 8 years.

Q:

Simple interest on a sum of Rs 6800 for 18 months is Rs 2244. What is the rate (in percentage) of interest per annum?

 A) 24 B) 18 C) 20 D) 22

Explanation:

0 38
Q:

Ram lent Rs. 6,000/- to Shiva for 3 years and Rs. 8,000/- to Krishna for 5 years at the same rate of simple interest per annum. He got a total interest of Rs. 5,220 from both. Find the rate of interest per annum.

 A) 6% B) 7% C) 8% D) 9%

Explanation:

0 60
Q:

Two equal sum are invested in two different schemes. One scheme gives simple interest and the other gives compound interest (annual compounding).The sum of interest obtained after 2 years from both the schemes is Rs 3717. If both scheme have 13% per annum interest rate, then what is the first year interest (in Rs) for simple interest scheme?

 A) 900 B) 1200 C) 1500 D) 600

Explanation:

1 101
Q:

A sum of money becomes 77/50 of itself in 18/5 years when invested at simple interest. What is the rate (in percentage) of interest per annum?

 A) 20 B) 18 C) 12 D) 15

Explanation:

1 177
Q:

The simple interest on a sum for 5 years is Rs 16800. The rate of interest for the first 3 years is 8% per annum and for the next 2 years is 12% per annum. What is the value (in Rs) of sum?

 A) 30000 B) 38000 C) 32000 D) 35000

Explanation:

1 165
Q:

Simple interest on a sum for 18 months at 14% per annum is Rs 1365.What is the value (in Rs) of sum?

 A) 6100 B) 7300 C) 8100 D) 6500

Explanation:

3 156
Q:

A sum becomes Rs 10000 in 10 years on simple interest at the rate of 10% per annum. What is the total interest (in Rs) of the 10 years?

 A) 4000 B) 5000 C) 2500 D) 4500

Explanation:

1 213
Q:

If the time increases by 7 years, then simple interest increases by Rs 8400 on a sum of Rs 6000. What is the rate (in percentage) of interest per annum?

 A) 18 B) 12 C) 20 D) 24