The L.C.M. of two numbers is 54. The numbers are in the ratio 2 : 3. Then sum of the number is:  Options
A) 28  B) 32  C) 40  D) 45  E) 54
Let the numbers be 2x and 3x.   Then, their L.C.M. = 6x.   So, 6x = 54 or x = 9.   The numbers are 18 and 27.   Hence, required sum = (18 + 27)= 
<gadget id="calculator">(18 + 27)</gadget>
<output>45</output>
45.   Answer: Option 45
<result>D</result>
The L.C.M. of two numbers is 54. The numbers are in the ratio 2 : 3. Then sum of the number is: