1.

A and B started a business with initial investments in the ratio 5 : 7. If after one year their profits were in the ratio 1 : 2 and the period for A?s investment was 7 months, B invested the money for :1). 6 months 2). 2 1/2 months3). 10 months4). 4 months

Answer»

Solution

Let B invested the money for = $x$ MONTHS

=> Ratio of INVESTMENTS of A : B = $(5 \times 7) : (7 \times x)$

= $5 : x$

Acc to QUES

=> $\frac{5}{x} = \frac{1}{2}$

=> $x = 5 \times 2 = 10$ months



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