Question

If 6x5 is exactly divisible by 9 then the least value of x is___​

Answer 1

Answer:

7

Step-by-step explanation:

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Answer 2

to find :

if 6x5 is exactly divisible by 9 , find least value of x

divisibility by 9 :

a number is divisible by 9 if the sum of its digit is a multiple of 9

solution :

6x5 is exactly divisible by 9

so, 6 + 5 + x = 11+x

so, the nearest upcoming multiple of 9 is 18

so, 11+x must be equal to 18

=> x = 18-11

=> x = 7

so the number is 675

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