a) Rs. 30
b) Rs. 50
c) Rs. 40
d) Rs. 45
Answer: d
Explanation:
$$\eqalign{
& A:B:C \cr
& = \left( {10 \times 7} \right):\left( {12 \times 5} \right):\left( {15 \times 3} \right) \cr
& = 70:60:45 \cr
& = 14:12:9 \cr
& \therefore {\text{C’s rent}} = {\text{Rs}}{\text{.}}\left( {175 \times \frac{9}{{35}}} \right) \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = {\text{Rs}}{\text{. }}45 \cr} $$
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