Tag: math & puzzles

Questions Related to math & puzzles

Which of the following is not true?
general knowledge math & puzzles

  1. A dodecahedron has 12 faces

  2. In spherical geometry, parallel lines meet

  3. A square is a special type of rhombus

  4. There are exactly 6 platonic solids

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Correct Option: D

Which of the following conversions is incorrect?
general knowledge math & puzzles

  1. 30 cm = 0.0003 km

  2. 3000 tonnes = 3 000 000 kg

  3. 20 000 mg = 2 g

  4. 670 km = 670 000 000 mm

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Correct Option: C

What does "permutative" mean?
general knowledge math & puzzles

  1. a*b*c = d

  2. a*(b*c)d = (a*b)(c*d)

  3. a*b = b*a

  4. Permutative is not a mathematical term.===

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Correct Option: D

This kind of number is divisible by only one and itself. The first few examples are 2, 3, 5, 7, and 11.
general knowledge math & puzzles

  1. Rational

  2. Prime

  3. Mersenne

  4. Natural

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Correct Option: B

What is the set of positive numbers that results in whole numbers when raised to the power of one-half?
general knowledge math & puzzles

  1. Triangular

  2. Square

  3. Cubic

  4. Noe of the above

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Correct Option: B

What is the name for the type of number that cannot be written as a ratio of two integers?
general knowledge math & puzzles

  1. Abundant

  2. Irrational

  3. Deficient

  4. Prime

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Correct Option: B

This kind of number is equal to the sum of its positive factors, excluding itself. The first 3 examples are 6, 28, and 496.
general knowledge math & puzzles

  1. rational Number

  2. irrational number

  3. perfect number

  4. none of the above

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Correct Option: C

Real numbers are rational, irrational, whole, and imaginary.
general knowledge math & puzzles

  1. True

  2. False

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Correct Option: B

The numbers 3, 7, 31, and 127 are what?
general knowledge math & puzzles

  1. Mersenne Primes

  2. Leibniz Primes

  3. fermat Primes

  4. Newton Primes

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Correct Option: A

What group of numbers does the letter "i" represent?
general knowledge math & puzzles

  1. Imiginary Numbers

  2. Indefinite Numbers

  3. Irrational Numbers

  4. Infinite Numbers

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Correct Option: A