Question
The nine digit number 9x48879y4 is divisible by 88. Find the value of √xy, given that x < 8 and y < 8.
Solution
For 9x48879y4 to be divisible by 88, it should be divisible by 8 as well as 11.
So, y = 4
And x = 4
So, √xy = 4
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