Ten years ago, P was half of Q's age. If the ratio of their present ages is 3:4 what will be the total of their present ages?  Options.
A) 33	B) 67	C) 29	D) 31	E) 35
E   35   Let present age of P and Q be 3x3x and 4x4x respectively.   Ten years ago, P was half of Q's age   ⇒(3x−10)=1/2(4x−10)   ⇒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=35
<result>E</result>
Ten years ago, P was half of Q's age. If the ratio of their present ages is 3:4 what will be the total of their present ages?