The ratio of the present age of Viju to that of Aju is 7:2. Four years from now, the ratio of the ages of Viju to Aju will be 5:2. What was Viju age 7 years ago ? (RBI Assistant 2015)
Choose the correct answer.
A) 24	B) 18	C) 14	D) 15	E) 13
Let the present age of Viju be 7x years and that of Aju be 2x years.   Then, 4 years from now   7x + 4 / 2x + 4 = 5 / 2   or 4x = 12   or x = 3   Viju present age = 7 * 3= 
<gadget id="calculator">7 * 3</gadget>
<output>21</output>
21 years   Viju age 7 years ago= 21 - 7= 
<gadget id="calculator">21 - 7</gadget>
<output>14</output>
14 years   answer :14
<result>C</result>
The ratio of the present age of Viju to that of Aju is 7:2. Four years from now, the ratio of the ages of Viju to Aju will be 5:2. What was Viju age 7 years ago ? (RBI Assistant 2015)