Sonal is 40 years old and Nithya is 60 years old. How many years ago was the ratio of their ages 3:5? |
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(a) |
5 yrs. |
(b) |
10 yrs. |
(c) |
20 yrs. |
(d) |
37 yrs. |
Sonal is 40 years old and Nithya is 60 years old. How many years ago was the ratio of their ages 3:5? |
|||||||
(a) |
5 yrs. |
(b) |
10 yrs. |
(c) |
20 yrs. |
(d) |
37 yrs. |
Let yrs. ago the ratio of their ages be
Then,
10 yrs. ago, their ages were in the ratio 3 : 5.