Question

The sum of five numbers is 290. The average of the first two numbers is 48.5 and the average of the last two numbers is 53.5. What is the third number?

• A. 72
• B. 84
• C. 96
• D. 108
• E. None of these

Answer 1

The correct option is E None of these

Here, sum of five numbers = 290
Sum of first two numbers = 2 $\times$ 48.5 = 97
Sum of last two numbers = 2 $\times$ 53.5
=107
$\therefore$ Third number = 290 - (97 + 107)= 86