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- Ten years ago A was half of B in age.
Question 1:
Ten years ago A was half of B in age. If the ratio of their present ages is 3: 4,what will be the total of their present ages?
A. 30
B. 35
Feedback Let A's age 10 years ago = x years.
Then, B's age 10 years ago = 2x years.
(x + 10) / (2x+ lO) = 3/4
=> x = 5.
So, the total of their present ages =(x + 10 + 2x + 10)
= (3x + 20) = 35 years.
Then, B's age 10 years ago = 2x years.
(x + 10) / (2x+ lO) = 3/4
=> x = 5.
So, the total of their present ages =(x + 10 + 2x + 10)
= (3x + 20) = 35 years.
C. 37
D. 41
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