1.

Average of four numbers is 12. If two other numbers, whose average is 15 are added to the given collections, then what will be the average of resulting six numbers ?1. 132. 123. 154. 6

Answer» Correct Answer - Option 1 : 13

Given:

Average of four numbers = 12

Two other number with average 15 is added to the collection

Concept:

Total sum = Total number × average

Calculation:

Total sum of 4 numbers = 4 × 12 = 48

Total sum of other 2 numbers = 2 × 15 = 30

Total sum of 6 numbers = 48 + 30 = 78

New average of resulting six numbers = 78/6 = 13



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