A) 15
B) 12
C) 24
D) None of these
Correct Answer: A
Solution :
We know that \[\text{Q}\text{.D}\text{.}=\frac{5}{6}\times \text{M}\text{.D}\text{.}\]\[=\frac{5}{6}\times 12=10\] \ \[\text{S}\text{.D}\text{.}=\frac{3}{2}\times \text{Q}\text{.D}\text{.}\]\[=\frac{3}{2}\times 10\] Þ \[\text{S}\text{.D}\text{.}=15\].
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