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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?

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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%


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1 answers

1 vote
Answered by on | Votes 1 |

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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