Math, asked by rchaturya35, 1 day ago

If a number 2ab9 is divisible 11 then b-a=

Answers

Answered by bpriya1973

Answer:

The answer will be 7 not 9.

Explanation: suppose the digit is abcd. Rule of divisibility states that for any no to be divisible by 11, a+c should be equal to b+d or it should be a multiple of 11.

Hence, for this case 2ab9 -

2+b = a+9

b-a = 9-2 = 7

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