Question

a sum of money invested at simple interest amounts to rupees 1300 in 8 years and rupees 1000 in 5 years. find the principal and the rate of simple interest .....please answer fast please

Answer 1

Principal=500
Rate=20%

Answer 2

p+8i=1300
p+5i=1000
3i=300
i=100
p=1300-800=500
r=(100×500)/500×5=20%