If 7×8 is exactly divisible by 9, then the least value of x isa. 0b. – InterviewSolution

1.

If 7×8 is exactly divisible by 9, then the least value of x isa. 0b. 2c. 3d. 5

Answer»

We know that the sum of the digits of a number is divisible by 9 then the whole number is divisible by 9

7+x+8 = multiple of 9

15+x= 0, 9, 18, 27….

15+x= 18

∴ x=18-15 = 3

The least value of x is 3

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