Tag: math & puzzles

Questions Related to 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


Correct Option: D

Which of the following conversions is incorrect?

  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


Correct Option: C

What does "permutative" mean?

  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.===


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.

  1. Rational

  2. Prime

  3. Mersenne

  4. Natural


Correct Option: B

What is the set of positive numbers that results in whole numbers when raised to the power of one-half?

  1. Triangular

  2. Square

  3. Cubic

  4. Noe of the above


Correct Option: B

What is the name for the type of number that cannot be written as a ratio of two integers?

  1. Abundant

  2. Irrational

  3. Deficient

  4. Prime


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.

  1. rational Number

  2. irrational number

  3. perfect number

  4. none of the above


Correct Option: C
  1. Mersenne Primes

  2. Leibniz Primes

  3. fermat Primes

  4. Newton Primes


Correct Option: A
  1. Imiginary Numbers

  2. Indefinite Numbers

  3. Irrational Numbers

  4. Infinite Numbers


Correct Option: A