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)
» Read More…
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. Rs. 360
B. Rs. 600
C. Rs. 900
D. Rs. 1080
A. 2 days
B. 4 days
C. 5 days
D. 6 days
A. 3 days
B. 6 days
C. 7 days
D. None of these
A. 1:7
B. 7:1
C. 1:40
D. 40:1
A. 4 ∶ 13
B. 3 ∶ 10
C. 4 ∶ 11
D. 5 ∶ 14