Question

A sum of rupees 1000 is invested at 8% simple interest per annum. calculate the interest at the end of 2,3...years

Answer 1

For 2 years
Simple interest= PNR/100
= 1000 × 8 ×2 /100
=160 rs
For 3 years
Simple Interest= PNR /100
=1000 × 8 ×3 /100
= 240

Answer 2

Hi ,

Principal ( p ) = Rs1000

Rate of interest ( r ) = 8 %

Time ( t ) = 1 year

Simple interest ( s.I ) = ptr/100

S.I = ( 1000 × 1 × 8 ) /100

= Rs 80----( 1 )

Therefore ,

Interest for 2 years = 2 × ( 1 )

= 2 × 80 = Rs160

Interest for 3 years = 3 × ( 1 )

= 3 × 80 = Rs 240

Interest for n years = n × 80

I hope this helps you.

:)