Question

for what value of x will 53×21 be divisible by 3​

Answer 1

Answer:

We know the divisibility rule for 3:

If the sum of the digits of a number is divisible by 3, then the number is also divisible by 3.

So, 3+x+5=8+x is divisible by 3

⟹x+8=9

So, the value of x is 1

Step-by-step explanation:

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