The L.C.M. of two numbers is 60. The numbers are in the ratio 2 : 3. Then sum of the number is: Select.
A) 28	B) 32	C) 40	D) 53	E) 50

Rationale: "let the numbers be 2 x and 3 x . then , their l . c . m . = 6 x . so , 6 x = 60 or x = 10 . the numbers are 20 and 30 . hence , required sum = ( 20 + 30 ) = 50 . answer : option e"
Answer: E