Mathematics — All MCQs
1905 questions available
Q1901.Ahmad reads 24 pages of a book in 15 minutes. The rate of pages read per minute by him will be:
Correct Answer: A
Rate of reading = total pages read / time in minutes = 24 pages / 15 minutes = 1.6 pages per minute.
Q1902.The total number of cubic blocks is 50. To construct a solid cube with none left over, what is the minimum number of blocks that need to be taken away?
Correct Answer: A
The volumes of solid cubes are perfect cubes: 1, 8, 27, 64, etc. The largest solid cube we can build with 50 blocks is 3x3x3 = 27 blocks. Thus, the minimum number of blocks to take away is 50 - 27 = 23.
Q1903.Which is the smallest of the following fractions: 4/9, 2/5, 3/7, 1/4?
Correct Answer: D
Convert each fraction to decimal: 4/9 ≈ 0.444, 2/5 = 0.4, 3/7 ≈ 0.428, 1/4 = 0.25. The smallest is 1/4.
Q1904.If x = 3, then x^3 = ?
Correct Answer: C
If x = 3, then x^3 is 3 * 3 * 3 = 27.
Q1905.A binary number 1100011 has the decimal value equal to _____?
Correct Answer: A
Convert binary 1100011 to decimal: 1*2^6 + 1*2^5 + 0*2^4 + 0*2^3 + 0*2^2 + 1*2^1 + 1*2^0 = 64 + 32 + 0 + 0 + 0 + 2 + 1 = 99.