Question

If the number 52a3 is divisible by 3, then what could be the possible value of a ?

Answer 1

Answer:

2, 5, 8

Step-by-step explanation:

the property of numbers divisible by 3 is that the sum of digits is also divisible by 3.

so, in order for 52a3 to be divisible by 3,

5+2+3+a has to be divisible by 3.

thus,

10 + a has to be divisible by 3

since 'a' is a single digit number, 10 + a can be 12, 15, 18.

thus, a can be 2, 5, or 8.

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Answer 2

Answer:

2

Step-by-step explanation:

divisbilty formula of 3 is all number addition and if the sum is divisible by 3 so the number is also divisible by 3.

= {5+2+(a=2)+3}÷3

= 12 ÷ 3

= 4

so value is divisible by 3

so value of a is 2

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