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The sum of two numbers is equal to 20 and their difference is 25. The ratio of the two numbers is
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- 9 : 1
- 7 : 9
- 3 : 5
- 2 : 7
Correct Option: A
Numbers are x and y
∴ x + y = 25
x – y = 20
On adding,
2x = 45
| ⇒ x = | = 22.5 | |
| 2 |
From equation (i),
22.5 + y = 25
⇒ y = 25 - 22.5 = 2.5
∴ Required ratio = 22.5 : 2.5 = 9 : 1
