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IfM. D. is 12, the value of S.D. will be
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The correct answer is:
15
We know that Q.D $=\frac{5}{6} \times M \cdot D .=\frac{5}{6} \times 12=10$
$\therefore \mathrm{S} . \mathrm{D}=\frac{3}{2} \times Q \cdot D .=\frac{3}{2} \times 10 \Rightarrow S . D .=15$
$\therefore \mathrm{S} . \mathrm{D}=\frac{3}{2} \times Q \cdot D .=\frac{3}{2} \times 10 \Rightarrow S . D .=15$
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