Question

a man invested 1000 for 3 year at 11% simple interest per annum and 1000 at 10% compound interest per annum compounded annually for 3 years find which investment is better​

Answer 1

simple interest

1000 × 3×10/100

=300

amount = 1000+300

=1300

compound interest

1000× 1 ×10/100

=100

amount = 1000+100=1100

for 2 year

1100×1×10/100

=110

amount =1100+110=1210

for 3 year

1210×1×10/100

=121

amount = 1210+121 =1331

now you can easily find that who is better