Question

Q1.In what time will rupees7500 amount to rupees 8625, if simple interestis reckoned at 7whole1/2% per annum?

Q2.At what rate per cent per annum simple interest will rupees66000 amount to rupees72720 in 2 years?

Answer 1

1)

p=7500

si=a-p

=8625-7500

=125

time=(si*100)/pr

=(1125*100)/(7500*15/2)

=(1125*100)/(3750*15)

=112500/56250

=2 YRS

2)

AMOUNT=72720

P=66000

INTEREST=6720

R=(SI*100)/pt

=672000/(66000*2)

=672000/132000

=5.09%