Question

A person pays a total of rs 975 through monthly installments each less than the former by rs 5. The first installment is rs 100. In how many installments will the amount be paid ?

Answer 1

the approximate answer is 26 days

Answer 2

Answer:total indtallment 81

Step-by-step explanation: it is a A.P direct question we can find it by applying sum formula

Here , a=100 d=-5 Sn=975

n=?

As sn= n/2(2a+(n-1)d)

Putting the value and solving the quadratic equation we will get 2 value of n but negative should not be used therefore in 81 installment he can repay