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Question

The unit digit in the expression 36234×33512×391805429×25123×31512 will be

A
8
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B
6
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C
5
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Solution

The correct option is B 6
It can be seen that the first expression is larger than the second one. Hence, the required answer would be given by the (units digit of the first expression - units digit of the second expression) = (6 x 1 x 1 - 4 x 5 x 1) = (6 - 0). Option (c) is correct.

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