Question

In how many years will 1000 amount to 1400
at the rate of $4\%$
per annum simple interest?

Answer 1

Expression for Given Question can be written as

$1400=1000+x\times \frac{4}{100}\times 1000\Rightarrow 400=x\times 40\Rightarrow x=10$

Hence, it will take $10$ years for $1000$ to become $1400$