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Find the smallest positive integer that leaves remainder 4 when divided by 5 and remainder 2 when divided by 7.
Correct answer(s):
- 9
Find the smallest positive integer that leaves remainder 5 when divided by 6 and remainder 1 when divided by 7.
Correct answer(s):
- 29
Find the smallest positive integer that leaves remainder 3 when divided by 7 and remainder 4 when divided by 9.
Correct answer(s):
- 31
Find the smallest positive integer that leaves remainder 1 when divided by 4 and remainder 2 when divided by 5.
Correct answer(s):
- 17
Find the smallest positive integer that leaves remainder 2 when divided by 3 and remainder 3 when divided by 5.
Correct answer(s):
- 8
Which numbers are composite?
Correct answer(s):
- 39
- 49
- 57
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
Convert decimal 511 into base 8.
Correct answer(s):
- 777
Convert decimal 83 into base 8.
Correct answer(s):
- 123
Convert decimal 156 into base 16.
Correct answer(s):
- 9C
Convert decimal 255 into base 16.
Correct answer(s):
- FF
Convert decimal 100 into base 2.
Correct answer(s):
- 1100100
Convert decimal 45 into base 2.
Correct answer(s):
- 101101
Convert (512) base 8 into decimal.
Correct answer(s):
- 330