The average of 5 children born at intervals of 2 years is 18 years. What is the age of the youngest child?
A. 10
B. 12
C. 14
D. 16
Correct Answer: C (14)
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A. 10
B. 12
C. 14
D. 16
A. F H K L N P 9 7 6 3 2
B. P N L K H F 9 7 6 3 2
C. P N L K H F 2 3 6 7 9
D. F H K L N P 2 3 6 7 9
A. 700
B. 935
C. 870
D. 845
A. (a + b) / 2
B. (a – b) / 2
C. (a + b)
D. (a – b)
A. 29, 35
B. 31, 37
C. 32, 38
D. 30, 36
A. 64
B. 128
C. 256
D. 512
A. 55
B. 58
C. 61
D. 64