A person lends 40 % of his sum of money at 15 % per annum, 50 % of res – McqOptions

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1.	A person lends 40 % of his sum of money at 15 % per annum, 50 % of rest at 10 % per annum and the rest at 18 % per annum rate of interest. What would be the annual rate of interest, if the interest is calculated on the whole sum?
A.	14.4 %
B.	13.33 %
C.	13.4 %
D.	14.33 %
Answer» B. 13.33 %

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