Question

An Interest of Rs. 120 accrued on Rs. 400 at
certain Rate in a certain time. The Interest
that accrues on Rs. 1600 at half the Rate in
half the time ....
1. Rs. 1600.00
2. Rs. 90.00
3. Rs. 120.00
4. Rs. 150.00​

Answer 1

Answer:

3. Rs. 120.00

Step-by-step explanation:

Given,

An Interest of Rs. 120 accrued on Rs. 400 at  certain Rate in a certain time.

SI=PTR/100

here SI=120

P=400

Rate=R

time=T

120=400*R*T/100

R*T=30

The Interest  that accrues on Rs. 1600 at half the Rate in  half the time ....

Sum=1600

Rate=R/2

Time=T/2

SI=(1600*R/2*T/2)/100

SI=4*RT

SI=4*30

SI=120