Question

In what time will $Rs.1600$ amount to $Rs.1768$ at $6\%$ per annum simple interest?

Answer 1

Principal $=Rs.1600$

Amount $=Rs.1768$

So, S.I $=$ amount $-$ principal

$=1768-1600$

$=168$

Rate of interest per annum $=6\%$

Time $=\frac{(S.I\times 100)}{(P\times R)}$

$=\frac{(168\times 100)}{(1600\times 6)}$

$=1.75$

So, Time $=1.75$ years = 1 year and 9 months