The average age of three boys is 15 years. If their ages are in a ratio 3: 5: 7, the age of the elder boy is:
A. 21 years
B. 18 years
C. 15 years
D. 9 years
Correct Answer: A (21 years)
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A. 21 years
B. 18 years
C. 15 years
D. 9 years
A. 21 years
B. 18 years
C. 15 years
D. 9 years
A. 10
B. 14
C. 21
D. 35
A. 46%
B. 54%
C. 65%
D. 78%
A. 20
B. 28
C. 32
D. 16
A. 10 pairs
B. 12 pairs
C. 14 pairs
D. 16 pairs
A. Rs. 360
B. Rs. 600
C. Rs. 900
D. Rs. 1080