A man starts repaying a loan as first instalment of Rs 100 = 00.

Question:

A man starts repaying a loan as first instalment of Rs 100 = 00. If he increases the instalments by Rs 5 every month, what amount he will pay in the 30th instalment?

Solution:

Let $a_{30}$ be the amount a man repays in the 30 th instalment.

Let d be the common increment in his instalment every month.

Let a be the initial repayment.

Here, a = 100, d = 5, n = 30

Amount to be repaid in the 30th instalment:

$a_{30} \Rightarrow a+(n-1) d$

$=100+29 \times 5$

$=245$

Hence, the man repays Rs 245 in his 30th instalment.

 

 

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