Question

at what rate per cent per annum of simple interest will rs 1000ammount to rs 1400 in 4 years​

Answer 1

Answer:

interest of ₹1400 on rate 7%

For 4 years

=₹392

Answer 2

Given that : Principal = 1000Rs., Time = 4 years, Amount = 1400Rs.

Simple Interest = Amount - Principal

=> S.I. = 1400-1000 = 400Rs.

According to the question :

$400 = \frac{1000 \times 4 \times r}{100} \\ \\ = > r = 10$

So, the rate of interest will be 10% per annum.

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