The sum of the present ages of two persons A and B is 60. If the age of A is twice that of B, find the sum of their ages 2 years hence? Choose the correct choice:
A) 58
B) 59
C) 64
D) 70
E) 74
Explanation:   A + B = 60, A = 2B   2B + B = 60 =&gt; B = 20 then A = 40.   2 years, their ages will be 42 and 22.   Sum of their ages = 42 + 22= 
<gadget id="calculator">42 + 22</gadget>
<output>64</output>
64.   64)
<result>C</result>
The sum of the present ages of two persons A and B is 60. If the age of A is twice that of B, find the sum of their ages 2 years hence?