The ratio of the father’s age to the son’s age is 4: 1. The product of their ages is 324. The ratio of their ages after 3 years is |
|||||||
a) |
11: 7 |
b) |
12: 5 |
c) |
13: 4 |
d) |
13: 5 |
The ratio of the father’s age to the son’s age is 4: 1. The product of their ages is 324. The ratio of their ages after 3 years is |
|||||||
a) |
11: 7 |
b) |
12: 5 |
c) |
13: 4 |
d) |
13: 5 |
´
= 324 Þ
\ Son’s age = 9 years
Father’s age = 36 years After 3 years, ratio is 39: 12 = 13: 4.
The ratio of the ages of two persons is 4: 7 and the age of one of them is greater than the other by 21 years. The sum of their ages is |
|||||||
a) |
84 |
b) |
77 |
c) |
88 |
d) |
82 |
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