Fill in the blank indicated by a star in the number 4*56 so as to make it divisible by 33
A
3
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B
4
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C
5
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D
None of these
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Solution
The correct option is A 3 4*56 is divisible by 33 if and only if it is divisible by 3 and 11.
4*56 will be divisible by 3 if * will be equal to 0, 3, 6, 9
4*56 is divisible by 11 if (4 + 5) - (* + 6) will be divisible by 11 so * should be 3.