Question:A lent Rs.`1200` to B for `3` years at a certain rate of simple interest and Rs.`1000` to C for the same time at the same rate.If he gets Rs.`50` more from B than from C,then the rate percent is : 

A `8 1/3%` 
B `6 2/3%` 
C `10 1/3%` 
D `9 2/3%` 

+ Answer
A 

+ Explanation
`(1200 xx R xx 3)/100 - (1000 xx R xx 3)/100`

`= 50 ⇔ 6R`

`= 50 ⇔ R`

`= 8 1/3%`

+ Report

Irin Moni

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