Answer:
66
Explanation:
= 300 - 3x = 102
= 300 = 3x + 102
= 300 = 3x
-102
= 198 = 3x
= 198 / 3 = x
= 66 = x
x = age
200 - 3x = 47, solve for x
x =51
6.6m questions
8.7m answers