Which numbers are composite?
Correct answer(s):
- 39
- 49
- 57
Topic
Number Classification
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Quizzes in Number Classification for HSC
Which numbers are divisible by 11?
Correct answer(s):
- 121
- 143
- 154
- 165
- 176
Which integers leave remainder 2 when divided by 5?
Correct answer(s):
- 17
- 22
- 27
- 32
- 42
Which fractions are already in lowest terms?
Correct answer(s):
- 7/12
- 22/35
- 25/36
Which pairs are co-prime?
Correct answer(s):
- 14 and 25
- 18 and 35
- 32 and 81
Which numbers are perfect cubes?
Correct answer(s):
- 64
- 125
- 216
- 343
Which numbers are perfect squares?
Correct answer(s):
- 121
- 144
- 169
- 196
- 225
Which numbers are divisible by both 6 and 8?
Correct answer(s):
- 48
- 72
- 96
- 120
Which of the following are rational numbers: pi, 5, 0.333…, 0.272727… ?
Correct answer(s):
- 5
- 0.333...
- 0.272727...
Determine whether sqrt(72) is a rational number or an irrational number.
Correct answer(s):
- Irrational
Which of the following numbers is an irrational number
Correct answer(s):
- √3