Your list · 0 हिं

Modulo Arithmetic & Congruence · Question 7 of 97

Question 7

EasyOriginal question

What is $125 \bmod 9$ ?

1

Correct answerYour answer

7

Correct answerYour answer

8

Correct answerYour answer

13

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

Divide by 9 and keep the remainder, which must be one of $0, 1, \dots, 8$ .
$125 = 9 \times (13) + 8$ , so the answer is 8.

Worth noting

13 is the quotient, not the remainder.

Concept: The remainder a mod n
Typical timeTypical: 60 s
Your timeYours: —

The rule this testsThe modulo operation

Practise this chapter →

Ten questions from Modulo Arithmetic & Congruence, at your own pace.

Practise this chapter →

Ten questions from Modulo Arithmetic & Congruence, at your own pace.

Practise this chapter All 97 questions in Modulo Arithmetic & Congruence Revise the notes for Modulo Arithmetic & Congruence