Question

The sum of Seven consecutive even numbers is 644. What is average of first four consecutive even number of the same set.

• A. 57
• B. 89
• C. 56
• D. 98

Answer 1

Answer:

B. 89

Sum of 7 consecutive even number is 644 Average = 644/7 = 92 it is an average of 7 consecutive even numbers then this average must be the 4th number of the set. So, the first 4 numbers of the set must be = 86, 88, 90 and 92 Average of first 4 digit = (86 + 88 + 90 + 92)/4 ⇒ 89