A lends Rs. 2500 to B and certain sum to C at the same time at 7% annual simple interest. If after 4 years, A altogether receives Rs. 1120 as interest from B and C, the sum lent to C is :

A lends Rs. 2500 to B and certain sum to C at the same time at 7% annual simple interest. If after 4 years, A altogether receives Rs. 1120 as interest from B and C, the sum lent to C is :
[A]6500
[B]1500
[C]4000
[D]700

1500
Let the sum lent to C be x
According to the question,
=> \frac{2500\times 7\times 4}{100}+\frac{x\times 7\times 4}{100}=1120
=>2500\times 28 + 28x = 112000
=> 2500 + x = 4000
=> x = 4000-2500 = 1500
Hence option [B] is the right answer.

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