Present ages of X and Y are in the ratio 6:8 respectively. Ten years hence this ratio will become 8:10 respectively. What is X's present age in years?
Answers.
A) 35	B) 36	C) 37	D) 39	E) 30
Let the present ages of X and Y be 6x and 8x years respectively.   Then, (6x + 10)/(8x + 10) = 8/10   10(6x + 10) = 8(8x + 10) =&gt; 60x+100 = 64x+80 =&gt; 4x =20 =&gt; x =5   X's present age = 6x = 6*5= 
<gadget id="calculator">6*5</gadget>
<output>30</output>
30   ANSW30R: 30
<result>E</result>
Present ages of X and Y are in the ratio 6:8 respectively. Ten years hence this ratio will become 8:10 respectively. What is X's present age in years?