Question

When x is divided by 4, the remainder is 3. What is the remainder when 2x is divided by 4?

Answer 1

Is it 2 ?

Answer 2

Try expressing the number x in terms of a quotient Q and the remainders.

Answer 3

you do know 7 divided by 4 has remainder 3 too right @ParthKohli

Answer 4

Like x = 4Q + 3.
Now 2x = 8Q + 6
2x = 8Q + 4 +2 = 4(2Q + 1 ) + 2

Answer 5

Where Q is an integer. :)

Answer 6

solution is above, but a trick for these problems is to try it with numbers and see what you get

Answer 7

try it with 7
14 divided by 4 leaves a remainder of 2
or try it with 11
22 divided by 4 leaves a remainder of 2
should be clear right?

Answer 8

Yes :) Thanks haha :)