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	Choose the correct choice from the following: A) 30 B) 35 C) 37 D) 41 E) 42
Explanation:   Let A's age 10 years ago = x years.   Then, B's age 10 years ago = 2x years.   (x + 10) / (2x+ lO) = 3/4   =&gt; x = 5.   So, the total of their present ages =(x + 10 + 2x + 10)   = (3x + 20) = 35 years   Option 35
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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