1.

For what value of digit x, is :28×6 a multiple of 3 ?

Answer»

28×6 is a multiple of 3 

2 + 8+ x + 6 is a multiple of 3 

=> 16 + x = 0, 3, 6, 9, 12, 15, 18 

=> x = -18, -5, -2, 0, 2, 5, 8 

Since, x is a digit = 2, 5, 8



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