42x8 divisible by 4 ?
∵ 42x8 is divisible by 4⇒ 4+2+x+8 is a multiple of 2⇒ 14+x=0,2,4,6,8,....⇒ x=−8,−6,−4,−2,2,4,6,8,....Since, x is a digit∴ 2,4,6,8
(i) All numbers divisible by 4 are divisible by 8.
(ii) All numbers divisible by 8 are divisible by 4.
All numbers divisible by 4 must also be divisible by 8 and all numbers divisible by 8 must also be divisible by 4
52 is divisible by 4. It means that 56 also is divisible by 4.
State True or False: If 52 is divisible by 4, then 56 is also divisible by 4.