Question

A person has ₹30,000 to invest. He wants to invest some amount in the fixed deposit and remaining in savings account. The interest rates are 7% and 5% p. a. for the fixed deposit and the saving account respectively. Find how he should divide the total amount ₹30000 in two accounts if he wants to get the annual interest as (i) ₹1800 (ii) ₹2000.

Answer 1

i) invest 15,000 in F.D. and 15,000 in savings account. u will get 1800.
ii)invest 25,000 in F.D and 5,000 in savings account. u will get 2000.

Answer 2

Answer:

15000 , 15000

25000 , 5000

Step-by-step explanation:

Let say He deposit in FD = RS  1000 D

Deposit in saving = Rs  (30000 - 1000D)

Interest on Fixed Deposit = 1000D * 7 * 1 /100 = 70D

Interest on Saving account = (30000 -1000D)*5*1/100 = 1500 - 50D

Total interest = 70D + 1500 - 50D

= 1500 + 20D

i)

=> 1500 + 20D = 1800

=> 20D = 300

=> D = 15

Fixed deposit = 15 * 1000 = Rs 15000

Saving = 30000 - 15000 = Rs 15000

i)

=> 1500 + 20D = 2000

=> 20D = 500

=> D = 25

Fixed deposit = 25 * 1000 = Rs 25000

Saving = 30000 - 25000 = Rs 5000