Rahul invested 50% of his money at 13% per annum and rest at 19% per a – InterviewSolution

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1.

Rahul invested 50% of his money at 13% per annum and rest at 19% per annum. What would be the annual rate of interest, if the interest is calculated on the whole sum?1). 16.5%2). 15.6%3). 16%4). 15%

Answer»

Let the TOTAL amount is Rs. 100

50% of 100 = 50 and Rest amount = 50

According to the question,

R = (13% of 50 + 19% of 50)/100 × 100

⇒ R = (6.5 + 9.5)/100 × 100

⇒ R = 16%

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