Question

what should be added to 282/21 so that the sum is 20?​

Answer 1

Answer:

Given number = 221

For a number to be divisible by 3 sum of digits must be divisible by 3.

Sum of digits = 2 + 2 + 1 = 5

Since 5 is not divisible by 3, therefore 221 not divisible by 3

(ii) 543

Given number = 543

For a number to be divisible by 3 sum of digits must be divisible by 3.

Sum of digits = 5 + 4 + 3 = 12

Since 12 is divisible by 3, therefore 543 is divisible by 3.

Answer 2

Answer:

138/21

Step-by-step explanation:

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