SSC CHSL 12 Oct 2020 Shift 3 Paper

Question : 69 of 100

Marks: +1, -0

When an integer

n

is divided by 5 , the remainder is 3 . What is the remainder if

8 n

is divided by 5 ?

Solution:

We know that,
Dividend

=

Divisor

\×

Quotient + Remainder

n=5 x+3

⇒

8 n=8(5 x+3)=40 x+24

Now, when

8 n

is divided by 5

=40 x+24

=5(8 x+4)+4

Hence, remainder is 4.

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