# A lent Rs. 600 to B for 2 years, and Rs. 150 to C for 4 years and received altogether from both Rs. 90 as interest.

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A lent Rs. 600 to B for 2 years, and Rs. 150 to C for 4 years and received altogether from both Rs. 90 as interest. Find the rate of interest, on which simple interest being calculated.

(A) 5%

(B) 8%

(C) 7%

(D) 9%

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Correct option (A) 5%

Explanation:

Rs. 600 for 2 years = Rs. 1200 for 1 year

and Rs. 150 for 4 years = Rs. 600 for 1 year Int. = Rs. 90

∴ Rate = (90 x 100 /1800 x 1 )= 5%