Question

Q.4) Classify the following numbers into the numbers which are divisible by 3,4,9 ?​

Answer 1

Answer:

1) Divisibility test of 3-

If sum of all digits of number is a multiple of 3, then a number is divisible by 3

Thus, numbers divisible by 3 are 474, 657, 684, 2187, 1905

2) Divisibility test of 4-

If a number formed by last two digits of a number is multiple of 4, then whole number is divisible by 4

Thus, numbers divisible by 4 are 684, 2548

3) Divisibility test of 5-

If units place of a number contains 0 or 5, then entire number is divisible by 5

Thus, numbers divisible by 5 are 875, 350, 1905

4) Divisibility test of 11-

Take the sum of alternate digits of given number to get two numbers. If difference between these two numbers is either 0 or multiple of 11, then the entire number is divisible by 11

Thus, numbers divisible by 11 are 803, 583, 1067, 4334

Answer 2

Answer:

1) no,no,yes

2)yes,yes,yes

3)no,no,yes

Step-by-step explanation:

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