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The average age of boys in the class is twice the number of girls in the class. If the ratio of boys and girls in the class of 36 be 5 : 1, what is the total of the ages (in years) of the boys in the class. [Bank P.O. 1989] | |
A. | 490 [Wrong Answer] |
B. | 420 [Wrong Answer] |
C. | 196 [Wrong Answer] |
D. | 360 [Correct Answer] |