1.

If 5x6 is exactly divisible by 3, then the least value of x is

Answer»

A number is only divisible by 3 if the sum of all its digits is devided by 3.So 5x6 = 5 + x + 6 = 11 + xLeast nunber devided by 3 is 12So 11 + × = 12Or, x = 12 - 11 = 1So least value of x is 1.



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