# A five-digit number is taken. Sum of the first four digits (excluding the number at the units digit) equals the sum of all the five digits. Which of the following will not divide the number necessarily?   Option 1)     Option 2)     Option 3)     Option 4)     Option 5)

Answers (1)
R rishi raj

A five-digit number is taken. Sum of the first four digits (excluding the number at the units digit) equals the sum of all the five digits. the following will not divide the number necessarily:

$last \: digit \: must\: be\: 0$

$if \: divisible\: by \: 10 \: then\: must \: be \: divisible\: by \: 2 \: and \: 5$

$not \: sure\: for \: 4$

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