Question

a man deposited some money in the bank .bank gives 10% per annum on simple interest.after 2 year he withdraw Rs3000.Bank gives 5%per annum on simple interest on remaining amount.At the end of the 4 year total amount is Rs9900.Find the initial investment​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

A man deposited some money in the bank .bank gives 10% per annum on simple interest.after 2 year he withdraw Rs3000.Bank gives 5%per annum on simple interest on remaining amount.At the end of the 4 year total amount is Rs9900

To Find:

Find the initial investment

Solution:

Let the initial investment be x

Bank gives 10% per annum on simple interest.after 2 year he withdraw Rs3000

Formula :

Simple interest =

Amount after 2 years = Principal+Interest = x+0.2x=1.2x

He withdraws 3000

So, Amount left = 1.2x-3000

Bank gives 5%per annum on simple interest on remaining amount.At the end of the 4 year total amount is Rs9900

Simple interest =

Amount after 4 years = 1.2x-3000+0.24x-600=1.44x-3600

At the end of the 4 year total amount is Rs9900.

So,

Hence The initial investment is Rs.9375.

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