Question:A money lender finds that due to a fall in the rate of interest from `8%` to `7 3/4%`,his yearly income diminishes by Rs.`61.50`.His capital is : 

A `Rs. 26000` 
B `Rs. 24600` 
C `Rs. 23800` 
D `Rs. 22400` 

+ Answer
B 

+ Explanation
Let the capital be Rs. x. Then,

`(x xx 8 xx 1)/100 - x xx 31/4 xx 1/100`

`= 61.50`

`or 32x - 31x`

`= 6150 xx 4`

`:. x = 24600`

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Irin Moni

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