Question

A person buys a bike by way of loan . He clears the loan in 10 inereased installments. Every month he remits the installment by adding a particular sum the preceding installment. If the sum of 3rd and 9th installments if rs.15000 and sum of 2nd and 6th installment is rs.13000, find last installment amount a nd total amount remitted by him.

Answer 1

The answer is Rs72,500

Answer 2

Answer:

Step-by-step explanation:

a3+a9=15000

a+2d+a+8d=15000

2a+10d=15000

a+5d=7500(1) taking common 2

a2+a6=13000

a+d+a+5d=13000

a+3d=6500(2)

use elimination method we get d= 500 and a=5000

S10= 5(10000+450)

S10=52250