Question

Babubhai borrows Rs. 4000 and agrees to repay with a total interest of Rs.500 in 10 instalments, each instalment being less than the preceding instalment by Rs.10. What should be the first and the last instalment?

Answer 1

The instalments are in A.P.

Here, S₁₀ = 4000 + 500 = 4500

Also, n = 10, d = -10

\(\therefore\) The first instalment is Rs. 495 and the last instalment is Rs. 405.