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 7 years hence? Choose the correct choice from the following answers.
A) 58
B) 74
C) 62
D) 70
E) 74
Explanation:   A + B = 60, A = 2B   2B + B = 60 =&gt; B = 20 then A = 40.   7 years, their ages will be 47 and 27.   Sum of their ages = 47 + 27= 
<gadget id="calculator">47 + 27</gadget>
<output>74</output>
74.   74)
<result>B</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 7 years hence?