Question

A number is divisible by 4 if the number formed by the digits in ............. places is divisible by 4

• A. units and tens
• B. tens and hundreds
• C. units
• D. units, tens and hundreds

Answer 1

Answer: (A)

units and tens

A number is divisible by $4$ if the number is formed by its digits in ten’s place and unit’s place (i.e. the last two digits on its extreme right side) is divisible by $4$.

For example, consider the number $124$,

The last two digits on its extreme right side of the number $124$ is $24$ which is divisible by $4$.

Therefore, $124$ is divisible by $4$.

Hence, a number is divisible by $4$ if the number formed by the digits in the units and tens places is divisible by $4$.