Question

The sum of the first three common multiples of 3,4,9 is 108,144,252,216

please give step by step explanation ​

Answer 1

Answer:

The correct answer is 216.

Step-by-step explanation:

Step 1 : First we have to find out common multiples of 3 , 4 and 9,  For that find L.C.M of 3 ,4 and 9  3

L. C.M ( 3 , 4 ,9 ) = 3 × 4 × 3 = 36  

Now multiples of 36 = { 36 , 72 , 108,  ….}

Sum of first three common multiples of 3 , 4 , and 9 = 36 + 72 + 108 = 216