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- The average of 1st 3 of 4 numbers is 16 and of the last 3 are 15.
Question 1:
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
Feedback A + B + C = 48
B + C + D = 45
A + D = 13
A – D = 3
A + D = 13
2D = 10
D = 5
B + C + D = 45
A + D = 13
A – D = 3
A + D = 13
2D = 10
D = 5
D. 2
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