Question:Gulshan Kumar borrows Rs. `300` at `5%` and Rs.`450` at `6%`at the same time and on the condition that the woule loan will be repaid when the total interest amounts to Rs. `126`.The loan will have to be repaid after how many years ? 

A `2` 
B `3` 
C `4` 
D `5` 

+ Answer
B 

+ Explanation
Let it be paid after x years .Then 

(300 xx 5 xx x)/100 + (450 xx 6 xx x)/100`

`= 126 ⇔ 42x`

`= 126 ⇔ x `

`= 3`

+ Report

Irin Moni

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