Question

Test the divisibility of the following numbers by 11:
(I)4334
(2)83721
(3)66311
(4)137269​

Answer 1

1)4334 is divisible by 11

2)83721 is divisible by 11

3)66311 is not divisible by 11

4)137269 is divisible by 11

_________/\_________

hope this will help u ❤

Answer 2

Answer:

1) (4+3)-(3+4) = 0

So divisible by 11.

2) (8+7+1)-(3+2) = 11

So divisible by 11

3) (6+3+1)-(6+1) = 3

So not divisible by 11

4) (1+7+6)-(3+2+9) = 0

So divisible by 11

Step-by-step explanation:

If the number of digits is even, add the first and subtract the last digit from the rest. The result must be divisible by 11.

If the number of digits is odd, subtract the first and last digit from the rest. The result must be divisible by 11.

The detailed explanation of how to test whether a number is divisible by 11 or not is attached in the form of an image.