1.  What sum of money is to divided among 3 persons in the ratio 3 : 4 : 7, so that the second person receives ₹ 12 only ?
A. ₹ 21
B. ₹ 32
C. ₹ 9
D. ₹ 42

Answer: Option D

Explanation:

Let required money be ₹ N.
Then,
(4/14) x N = 12
⇒ N = (12 x 14)/4
= ₹ 42