sing divisibility tests, determine which of the following numbers are divisible by 11:(a)  5445           (b) 10824         (c)  7138965         (d)  70169308      (e)  10000001(f)  901153

Explanation

To determine which of the following numbers are divisible by 11, we will use the divisibility test for 11. The test involves the following steps:

1. **Identify the odd and even positioned digits** in the number.
2. **Sum the digits in the odd positions** and the digits in the even positions.
3. **Find the absolute difference** between the two sums.
4. If the difference is divisible by 11 (including 0), then the original number is also divisible by 11.

Now, let's apply this method to each of the numbers provided:
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