Question 66

What should replace * in the number 94*2357, so that numberis divisible by 11?

Solution

If the number 94*2357 is divisible by 11 then sum of all alternative digit will be equal. So,

9 + * + 3 + 7 = 4 + 2 + 5

* = 11 - 19 = -8

The value of * = 11 - 8 = 3

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