In how many years a sum becomes 4 times of itself at the rate of 12% p.a.?
Answers
Answered by
2
Answer:
Let Sum=₹x
At 12% Annum.
It become 4 times.
Amount=4x
SI=Amount-Sum
=4x-x
=3x
SI=₹3x
Sum=₹x
Rate=12%
Time=?
We know.
\boxed{\mathtt{SI=\frac{Sum\times\:Rate\:\times\:Time}{100}}}
SI=
100
Sum×Rate×Time
\boxed{\mathtt{3x=\frac{x\times\:12\:\times\:Time}{100}}}
3x=
100
x×12×Time
\boxed{\mathtt{\frac{3x\times100}{12x}=Time}}
12x
3x×100
=Time
\boxed{\mathtt{\frac{300x}{12x}=Time}}
12x
300x
=Time
\boxed{\mathtt{25\:years=Time}}
25years=Time
Hence Option c is correct
\boxed{\mathtt{\huge{Time=25\:years}}}
Time=25years
Answered by
2
Answer:
25 is the answer
Step-by-step explanation:
hope it helps
Similar questions