Question

Ratio of present ages of P and Q is 9 : 4. The difference between their ages is 20 years. What will be the sum (in years) of their ages after 10 years?

A) 62 B) 66 C) 72 D) 76

Answer 1

Answer:

D.

Step-by-step explanation:

Mark as brainlist ✨✨✨✨✨✨

Answer 2

Answer:

$let \: the \: \: present \: age \: of \: p \: and \\ \: q \: is \: 9x \: and \: 4x \\ difference \: of \: ages \: = \: 20 \: \\so \: 9x - 4x = 20 \\ 5x = 20 \\ x = 4 \\ sum \: of \: ages \: = 9x + 4x = (9 \times 4 ) \\ +( 4 \times 4) = 36 + 16 = 52$