Question

Replace *by the smallest number to make it divisible by 9 in the number 31 *42

Answer 1

Answer:

8

Step-by-step explanation:

31*42 》3 + 1 + 4 + 2 + *

= 10 + *

Now, for the number to be divisible by 9, its sum of digits should be divisible by 9.

Therefore, 10 + * = 18

=> * = 18 - 10 = 8

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