Question

A certain sum of money amounts to Rs. 20,160 in 5 years at 8% interest. Find the principal
(A) Rs. 14,000
(B) Rs. 14,100
(C) Rs. 14,440
Von Rs. 14,200​

Answer 1

Answer:

Option (b) is the correct answer.

Answer 2

Answer:

The correct option is (C) Rs 14,400

Step-by-step explanation:

Let the principal be x

Given, Amount = Rs 20160

Simple interest = Amount - Principal = 20160 - x

S.I. = p*r*t/100

20160 - x = x*8*5/100

= 40x/100

= 2x/5

Or, 2x/5 = 20160 - x

Or, 2x/5 + x = 20160

Or, 2x + 5x / 5 = 20160

Or, 7x / 5 = 20160

Or, x = 20160 * 5 / 7 = ₹ 14,400 (answer).

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