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The sum of Seven consecutive even numbers is 644. What is average of first four consecutive even number of the same set.
1. 57
2. 89
3. 98
4. 103
5. 53

1 Answer

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Correct Answer - Option 2 : 89

Given:

The sum of Seven consecutive even numbers is 644

Formula used:

Average = Sum of unit/number of units

Calculation:

Sum of 7 consecutive even number is 644

Average of them = 644/7 = 92

And as 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

∴ The average of first 4 consecutive numbers of the set is 89

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