1.

On dividing a positive integer n by a 9 we get 7 as remainder what will be the remainder if 3n -1 is divided by 9​

Answer»

Step-by-step EXPLANATION:

the no. can.be WRITTEN as 9k+7

3n-1=3(9k+7)-1=27k+20=9(3k+2)+2.

hens REMINDER will be 2



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