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Combination with Restrictions

What will be ...

Question

What will be the difference between the sum of the odd digits and the sum of the even digits in the number $^{'} 857423^{'} ?$

A

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B

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C

2

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D

4

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Solution

The correct option is A $1$
Required difference
$= (5 + 7 + 3) - (8 + 4 + 2) = 15 - 14 = 1$ .

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