One decade ago, X was half of Y in age. If the proportion of their current ages is 3:4, what will be the overall of their current ages? Choose the correct choice from the following options
A) 35 years B) 44 years C) 76 years D) 55 years E) 43 years
A   35 years   Let the ages of X and Y 1 decade ago be A and 2A years correspondingly.   Then, [ (35 years +10)/235 years+10) ] = (3/4)   4 (35 years – 10) = 3(235 years – 10)   235 years = 10   35 years = 5   Therefore,   Sum of theircurrent ages = (35 years + 10) + (235 years + 10) = (335 years + 20)   = 35 years.
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One decade ago, X was half of Y in age. If the proportion of their current ages is 3:4, what will be the overall of their current ages?