Question

3. Check the divisibility of :(i) 6125, 50105 and 32950 by 25(ii) 17852, 639210, 61233 by 6​

Answer 1

Answer:

Step-by-step explanation:

Divisibility rule of 25 : The last two digits of the number must be divisible by 25.

Therefore:  

In 6125 , 25 is divisible by 25, so 6125 is divisible by 25.

In 50105 , 05 is not divisible by 25, so 50105 is not divisible by 25.

in 32950 , 50 is divisible by 25, so 32950 is divisible by 25.

Divisibility rule of 6 : The number must be divisible by 2 and 3.

Divisibility rule of 2 : The number should be even number.

Divisibility rule of 3 : The sum of digits should be a multiple of 3.

Therefore:

In 17852 , it is an even number, so it is divisible by 2.

1 + 7 + 8 + 5 + 2 = 23, which isn't a multiple of 3, so 17852 isn't divisible by 6

Similarly 639210 and 61233 is divisble by 6.

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Answer 2

17852 639210 ,61233by25