DIVISIBILITY BY 18 QUESTIONS

Divisibility by 18 questions :

Here we are going to see some practice questions on divisibility by 18.

Divisibility by 18 - Practice questions

(1)  Check whether 1458 is divisible by 18.

Question 1 :

Check whether 1458 is divisible by 18.

Solution :

If the given number is divisible by both 2 and 9.Then we can say it is divisible by 18.

Since the given number ends with 8, it is even number.

All even numbers are divisible by 2.

Now we need to check if it is divisible by 9. To check whether it is divisible by 9 need to calculate the sum of the digits that is,

1 + 4 + 5 + 8 = 18

18 is divisible by 9

Hence, the given number 1458 is divisible by 18.

Question 2 :

Check whether 270 is divisible by 18.

Solution :

If the given number is divisible by both 2 and 9.Then we can say it is divisible by 18.

Since the given number ends with 0, it is even number.

All even numbers are divisible by 2.

Now we need to check if it is divisible by 9. To check whether it is divisible by 9 need to calculate the sum of the digits that is,

2 + 7 + 0 = 9

9 is divisible by 9

Hence, the given number 270 is divisible by 18.

Question 3 :

Check whether 253 is divisible by 18.

Solution :

If the given number is divisible by both 2 and 9.Then we can say it is divisible by 18.

Since the given number ends with 3, it is odd number.

253 is not  divisible by 2.

Hence, the given number 253 is not divisible by 18.

Question 4 :

Check whether 3186 is divisible by 18.

Solution :

If the given number is divisible by both 2 and 9.Then we can say it is divisible by 18.

Since the given number ends with 6, it is even number.

3186 is divisible by 2.

Now we need to check if it is divisible by 9. To check whether it is divisible by 9 need to calculate the sum of the digits that is,

3 + 1 + 8 + 6 = 18

18 is divisible by 9

Hence, the given number 3186 is divisible by 18.

Question 5 :

Check whether 9050 is divisible by 18.

Solution :

If the given number is divisible by both 2 and 9.Then we can say it is divisible by 18.

Since the given number ends with 0, it is even number.

9050 is divisible by 2.

Now we need to check if it is divisible by 9. To check whether it is divisible by 9 need to calculate the sum of the digits that is,

9 + 0 + 5 + 0 = 14

14 is not divisible by 9

Hence, the given number 9050 is not divisible by 18.

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