Multiple choice

(\text{The average of five positive numbers is 444. The average of first two numbers is 550 and that of last two numbers is 150. What is the third number ?})

  1. 805

  2. 815

  3. 820

  4. 810

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sum of all five numbers = 444 × 5 = 2220. Sum of first two = 550 × 2 = 1100. Sum of last two = 150 × 2 = 300. The third number = 2220 - 1100 - 300 = 820.

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