Present ages of X and Y are in the ratio 4:5 respectively. 6 years hence this ratio will become 5:6 respectively. What is X's present age in years?
Choose the correct choice from the following answers:
A) 35	B) 24	C) 37	D) 39	E) 40
Let the present ages of X and Y be 4x and 5x years respectively.   Then, (4x + 6)/(5x + 6) = 5/6   6(4x + 6) = 5(5x + 6) =&gt; 24x+36 = 25x+30 =&gt; x=6   X's present age = 4x = 4*6= 
<gadget id="calculator">4*6</gadget>
<output>24</output>
24   ANSWER: 24
<result>B</result>
Present ages of X and Y are in the ratio 4:5 respectively. 6 years hence this ratio will become 5:6 respectively. What is X's present age in years?