Question

what principal bwill amount to rs 900 in 6 years at 10% simple interes t

Answer 1

a=p(1+r/100)
=> 900=p(1+10/100)
=> 900=p(100+10/100)
=> 900=p(110/100)
=> 900=p(11/10)
=> p(11/10)=900
=> p=900*10/11

solve it