The ratio of ages of A, B and C is 2 : 4 : 5 and sum of their ages is 77. Find the ratio of A's age
to B's age ten years hence.
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A.
Sat Dec 30 1899 10:17:00 GMT+0000 (Coordinated Universal Time)
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B.
Sat Dec 30 1899 13:18:00 GMT+0000 (Coordinated Universal Time)
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C.
Sat Dec 30 1899 12:19:00 GMT+0000 (Coordinated Universal Time)
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D.
Sat Dec 30 1899 11:14:00 GMT+0000 (Coordinated Universal Time)
Correct Answer:
C. Sat Dec 30 1899 12:19:00 GMT+0000 (Coordinated Universal Time)
Explanation:
The ratio of ages for A, B, and C is 2:4:5, and their total age is 77. By adding the ratio parts (2+4+5=11), we find that 11 units equal 77 years, making one unit equal to 7 years. Therefore, A is currently 14 years old (2 * 7) and B is 28 years old (4 * 7). In ten years, A will be 24 and B will be 38. The resulting ratio of their ages is 24:38, which simplifies to 12:19. According to the options provided, the correct answer is C.
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