Question

if a number n is divisible by 16 and 28 it must also be divisible by

a) 36
b) 66
c) 46
d) 56

do xplain it too plz

Answer 1

First, find the Least Common Multiple of 16 and 28
16 28
32 56
48 84
64 112
80
96
112

112 is your LCM
Now find which one of the answers is a factor of 112
112/2=56 so the answer is d

Answer 2

thanks :)