Question

Answer: 1) A whole number is said to be divisible by 3 if the sum of all the digits of a whole number is exactly divided by 3; this rule is referred to as the divisibility rule of 3. Without doing division we can find out whether a number is divisible by 3 or not. For example, 45 is divisible by 3 as the sum of 45 is (4+5) = 9, is divided by 3. Hence, 45 is said to be divisible by 3, because it gives the quotient as 15 and the remainder as 0.​

Answer 1

Answer:

A whole number is said to be divisible by 3 if the sum of all digits of that whole number is a multiple of 3 or exactly divisible by 3. ... a) In 1377, the sum of all the digits = 1+3+7+7 = 18. Since 18 is divisible by 3, it means 1377 is also divisible by 3. Here, 1377 ÷ 3 = 459 is the quotient and the remainder is 0.

Answer 2

Answer:

A whole number is said to be divisible by 3 if the sum of all digits of that whole number is a multiple of 3 or exactly divisible by 3. ... a) In 1377, the sum of all the digits = 1+3+7+7 = 18. Since 18 is divisible by 3, it means 1377 is also divisible by 3. Here, 1377 ÷ 3 = 459 is the quotient and the remainder is 0.

Explanation:

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