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The average of 1st 3 of 4 numbers is 16 and of the last 3 are 15. If the sum of the first and the last number is 13. What is the last numbers?

A.8
B.6
C.5
D.2
Answer and Feedback
Answer:C
Feedback:A + B + C = 48
B + C + D = 45
A + D = 13
A – D = 3
A + D = 13
2D = 10
D = 5

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Practice Averages Online Test 1 | Englishfreetest.com

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