The difference between the weights of two girls is 10 kgs. Five years ago, the heavier one was twice as heavy as the lighter one. The present age of the heavier person is	Choose the correct choice from the following answers:
A) 15kg
B) 10kg
C) 20kg
D) 25kg
E) 30kg
Let their weights of x kgs and (x + 10) kgs respectively.   Then, (x + 10) - 5 = 2(x - 5)   ⇔ x +5= 2x - 10   ⇔ 3x = 15   ∴ Present weight of the heavier person = (5 + 10)= 
<gadget id="calculator">(5 + 10)</gadget>
<output>15</output>
15kgs.   15kgnswer :15kgs
<result>A</result>
The difference between the weights of two girls is 10 kgs. Five years ago, the heavier one was twice as heavy as the lighter one. The present age of the heavier person is