Question

There is 50% increase in an amount in 5 years at simple interest. What will be the compound interest of Rs. 12,000 after 3 years at the same rate ?
A) Rs. 5422
B) Rs. 5489
C) Rs. 3972
D) Rs. 6145

Answer 1

4

Q:

There is 50% increase in an amount in 5 years at simple interest. What will be the compound interest of Rs. 12,000 after 3 years at the same rate ?

A) Rs. 5422B) Rs. 5489C) Rs. 3972D) Rs. 6145

Answer:   C) Rs. 3972 

Explanation:

Let p = Rs. 100.

Then, S.I is Rs. 50 and time = 5 years. 

∴ R = 100×50100×5= 10% p.a.

 

Now, p = Rs. 12,000 , T = 3 years and R = 10% p.a.


C.I. = Rs. 12000×1+101003-1= Rs. 3972

Answer 2

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There is 50% increase in an amount in 5 years at simple interest. What will be the compound interest of Rs. 12,000 after 3 years at the same rate ?
A) Rs. 5422
B) Rs. 5489
C) Rs. 3972
D) Rs. 6145

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