The ratio of two given numbers is 7 : 3. If 2 is added to each, their ratio…
2023
The ratio of two given numbers is 7 : 3. If 2 is added to each, their ratio becomes 2 : 1. What will be the sum of these two numbers?
Answer: C. 20 — Let the numbers be 7x and 3x. Adding 2 gives (7x + 2)/(3x + 2) = 2. Solving for x yields 2, making the numbers 14 and 6. The sum of these two numbers is 20.
- A.
10
- B.
15
- C.
20
- D.
18
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Correct answer: C
Let the numbers be 7x and 3x. Adding 2 gives (7x + 2)/(3x + 2) = 2. Solving for x yields 2, making the numbers 14 and 6. The sum of these two numbers is 20.
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