CTET 2 Math and Science Sep 2015 Paper

Question : 58 of 120

Marks: +1, -0

The smallest value of ‘y’ in the number 9y8071 so that it is divisible by 11 is:

Solution:

Divisibility Rule of 11
The difference between the sum of digits at odd place and at even place is divisible by 11 or equal to zero.

The difference

=(24)-(1+y)=23-y

For smallest value of

y=1

,
So that 22 is divisible by 11.

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