Question

When Z is divided by 8 the remainder is 5. What is remainder when 4Z is divided by 8 ??
Plzz solve it stepwise

Answer 1

When Z is divided by 88 the remainder is 55. What is the remainder when 4Z4Z is divided by 88?

My Attempt:

We know,

dividend=divisor×quotient+remainderdividend=divisor×quotient+remainder

Z=8×k+5Z=8×k+5

Z−5=8KZ−5=8K

Z−58=k





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Answer 2

supposed the number is 21

when 21 divided by 8 it leaves remainder 5
when 4×21 divided by 8
84÷8 = q =10
r=4