Rosa is 8 years older than Lito. In 10 years, the sum of their ages will be 50. How old is Lito now?
Correct answer: B. 11 years old
In 10 years, Lito will be L + 10 and Rosa L + 18. Then 2L + 28 = 50, so L = 11. Rosa is now 19. Note that 19 is Rosa's age, not Lito's.
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