Question

A certain sum of money was invested which amounted to ₹9000 at 4% p.a simple interest in 3 year. What will it amount in 6 years at 10% p.a simple interest?​

Answer 1

let principal =x

then,

9000=[{(x×4×3)/100}+x]

#9000=112x/100

#900000=112x

#900000/112=x

therefore x=8035.71429

therefore, the amount after 6 years at 10%= [{(8035.71429×6×10)/100}+8035.71429]

=₹12,857.1429(answer)