Question
A two-digit number '7b' is completely divisible by '4'.
When the same number is divided by '3', there is a remainder of '1'. Find the value of 'b'.Solution
ATQ,
Since, '7b' is divisible by 4
So, possible values of 'b' = 2, and 6
For, 72 remainder when it is divided by 3 = 0
For, 76 remainder when it is divided by 3 = 1
Therefore, the value of 'b' = 6
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