A man lent $R S . 600$ to B for $2$ years and $R s . 150$ to C for $4$ years and received altogether from both $R s . 90$ as interest. Find the rate of interest.

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Solution

The correct option is B $5$ %
Let rate = R% per annum.
Then, [(600 x R x 2)/ 100 ] + [(150 x R x 4 ) / 100] = 90
⇒ 18R = 90
∴ R = 5%

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A man 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.

The correct option is B 5%Let rate = R% per annum. Then, [(600 x R x 2)/ 100 ] + [(150 x R x 4 ) / 100] = 90⇒ 18R = 90∴ R = 5%

A man lent $R S . 600$ to B for $2$ years and $R s . 150$ to C for $4$ years and received altogether from both $R s . 90$ as interest. Find the rate of interest.

The correct option is B $5$ %
Let rate = R% per annum.
Then, [(600 x R x 2)/ 100 ] + [(150 x R x 4 ) / 100] = 90
⇒ 18R = 90
∴ R = 5%