Ten years ago, P was half of Q's age. If the ratio of their present ages is3:4, what will be the total of their present ages? Answers:
A) 45	B) 40	C) 35	D) 30	E) 25
Let present age of P and Q be   3x and   4x respectively.   Ten years ago, P was half of Q's age   ⇒(3x−10)=1(4x−10)/2   ⇒6x−20=4x−10   ⇒2x=10   ⇒x=5   Total of their present ages   3x+4x=7x3 +4= 
<gadget id="calculator">3 +4</gadget>
<output>7</output>
7x=7*5= 
<gadget id="calculator">7*5</gadget>
<output>35</output>
35   ANSWER:35
<result>C</result>
Ten years ago, P was half of Q's age. If the ratio of their present ages is3:4, what will be the total of their present ages?