Question

which number is a multiple of all the three numbers 48abd 6 a 396 b 664 c 696 d 5432​

Answer 1

Given : multiple of all the three numbers 4 , 8 and 6

To Find : Correct option

a 396  b 664  c 696  d 5432​

Solution:

multiple of all the three numbers 4 , 8 and 6

Multiple of 8 will be multiple of 4 also

Multiple of 6 will be multiple of 3 also

A number is a multiple of 3 if sum of Digits is divisible by 3

396   3 + 9 + 6 = 18 Divisible by 3

664   6 + 6 + 4 = 16 not divisible by 3  Hence neglected

696   6 + 9 + 6  = 21 Divisible by 3

5432 = 5 + 4 + 3 + 2 =  14  not divisible by 3  Hence neglected

Now left with  396  and  696

396   / 8  = 49.5

696/  8  =  87

Hence 696 is   multiple of all the three numbers 4 , 8 and 6

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