how can we say a number is divisible by 11
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Hii!!
Take the alternating sum of the digits in the number, read from left to right. If that is divisible by 11, so is the original number.
So, for instance, 2728 has alternating sum of digits 2-7+2-8 = -11. Since -11 is divisible by 11, so is 2728.
Hope it helps.
Take the alternating sum of the digits in the number, read from left to right. If that is divisible by 11, so is the original number.
So, for instance, 2728 has alternating sum of digits 2-7+2-8 = -11. Since -11 is divisible by 11, so is 2728.
Hope it helps.
hdewangan:
sorry
oh kk no problem bro
sorry :(
m so sorry sis
no bro don't be sorry
Thnx
ya u carry on
Actually I m little busy with my family... I m engaged in some work
So bye
oh kk carry on
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