Of the three numbers, the average age of the first and the second is greater than the average of the second and the third by 15. What is the difference between the first and the thir4d of the three numbers? |
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a) |
15 |
b) |
45 |
c) |
60 |
d) |
None |
Of the three numbers, the average age of the first and the second is greater than the average of the second and the third by 15. What is the difference between the first and the thir4d of the three numbers? |
|||||||
a) |
15 |
b) |
45 |
c) |
60 |
d) |
None |