A) 6 months
B) \[2\frac{1}{2}\] months
C) 10 months
D) 4 months
Correct Answer: C
Solution :
Let investments of A and B respectively be 5x and 7x and period of B's investment be y months. Then. \[\frac{(5x)\times 7}{(7x)\times y}=\frac{1}{2}\,\] \[\Rightarrow \] \[y=10\]You need to login to perform this action.
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