Question 51
Which smallest number must be subtracted from 400, so that the resulting number is completely divisible by 7?
Solution
On dividing 400 by 7, we get : $$400=7\times57+1$$
Thus, the smallest number which should be subtracted from 400 = 1
Also, $$400-1=399$$ is completely divisible by 7.
=> Ans - (B)
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