Question
Which of the following numbers is divisible by 11?
The correct answer is
5621
To check divisibility by 11, take the alternating sum of digits:
For 5621: 5 - 6 + 2 - 1 = 0
Since the result is divisible by 11, 5621 is divisible by 11.
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Important Questions from Divisibility and Remainder
If a five digit number 247xy is divisible by 3, 7 and 11, then what is the value of (2y - 8x)?
If the seven-digit number 94x29y6 is divisible by 72, then what is the value of (2x + 3y) for x ≠ y ?
Find the greatest value of b so that 30a68b (a > b) is divisible by 11.
What is the remainder when the product of 335, 608 and 853 is divided by 13?
- What is the least square number which is exactly divisible by 2, 3, 10, 18 and 20?
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