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The average of 5 numbers is 7. When 3 new numbers are added, the average of the eight numbers is 8.5. Average of the three new numbers is

A) 11
B) 7.75
C) 8.5
D) 7

Correct Answer:

A) 11

Description for Correct answer:
Sum of three new numbers = \( \Large 8 \times 8.5 - 5 \times 7 = 33 \)

Therefore, Their average = \( \Large \frac{33}{3} = 11 \)

Part of solved Average questions and answers : >> Aptitude >> Average

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