Question

At what rate percent will a sum of rupees 400 amount to rupees 520 in 5 years

Answer 1

Answer:

Given ,

Amount = 520

principle = 400

time = 5 yrs

Now ,

Amount = (P * T * R )/100 + P

or, 520 = (400 * 5 *R )/100 + 400

or, 520 - 400 = 20 * R

or, R = (520 - 400 )/20

•°• R = 6 % Ans

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Answer 2

r is to s.i into 100 then p X t. 400 X. 100 upon 520 X5= 6