Question

If M.D. is 12, the value of S.D. will be

• A. 15
• B. 12
• C. 24
• D. None of these

Answer 1

Answer: (A)

15

Answer 2

We know that $\text{Q.D.} = \frac{5}{6} \times \text{M.D.} = \frac{5}{6} \times 12 = 10$

∴ $\text{S.D.} = \frac{3}{2} \times \text{Q.D.} = \frac{3}{2} \times 10$ ⇒ $\text{S.D.} = 15$.