Question

Find the principal on which the simple interest for 7/2years at 4
% amount to 1026rs

Answer 1

Simple interest = SI = 1026

Rate of interest Per Annum= R = 4%

Time = T = 7/2 years (assuming it to be 7 1/2 years = 7.5

we know that

SI = PTR/100

1026 = P × 7.5 × 4/100

1026×100 / (7.5×4) = P

102600/ 30 = P

3420 = P = Principal amount..

if its 3.5 years

Then P will be

1026×100 / (3.5×4) = P

102600/14 = P

7329 = P = Principal amount

Answer 2

hi

simple interest is 1026

time is 7/2

rate is 4percent

SI = PRT/100

P=R×T/100 × SI
= 4×7/2 divided by 100×1026
=2×7/100×1026
=7/51600

so principal is 7/51600