Two numbers are in the ratio 3 : 4. If their L.C.M. is 60. what is sum of the numbers?
Answers
A) 35 B) 56 C) 76 D) 84 E) 85
Explanation:   Let the numbers be 3x and 4x   LCM of 3x and 4x = 12x (Since LCM of 3 and 4 is 12. Hence LCM of 3x and 4x is 12x)   Given that LCM of 3x and 4x is 60   =&gt; 12x = 60   =&gt; x = 60/12= 
<gadget id="calculator">60/12</gadget>
<output>5</output>
5   Sum of the numbers= 3x + 4x   = 7x   3  + 4= 
<gadget id="calculator">3  + 4</gadget>
<output>7</output>
7x= 7 x 5 = 35   35nswer: Option 35
<result>A</result>
Two numbers are in the ratio 3 : 4. If their L.C.M. is 60. what is sum of the numbers?