Question

At what rate percent per annum simple interest will 400 ammount to Rs.460 in 3years​

Answer 1

Step-by-step explanation:

P = rs 400

t = 3 yr

A = rs 460

Therefore I = A - P = 460 - 400 = rs 60

$r = \frac{i \times 100}{p \times t} \\ \frac{60 \times 100}{400 \times 3} \\ \frac{60}{12} = 5\%$

Hence the required rate of interest is 5 % p.a.

Answer 2

Answer:

Principle = Rs. 400

Amount = Rs. 460

Time = 3 yrs

$solution \: -$

Simple Interest = Amount - Principle

= Rs. 460 - Rs.400

= Rs. 60

.•. S. I = Rs. 60.

Rate = SI×100÷PRINCIPLE × TIME

= 60×100÷400×3

= 5% p. a

Ans) Rate percent is 5% p. a.

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