Question

A man repays a loan of Rs 3250 by paying Rs 20 in the first month and then increases payment by Rs 15 every month.
How long will it take him to clear the loan?

Answer 1

total loan pays is 3250

Note that it forms a A.P with d=15 & a =20

we know that

A(n) = a +(n-1)d

3250 = 20 + (n-1)× 15

3230= (n-1)×15

n= 216.3333333

n= 217 months