43
If U = {x : x is an integer and 1 ≤ x ≤ 20 }
E1 = {x: x is a multiple of 3}
E2 = {x: x is a multiple of 4} and an integer is picked at random from U, find the probability that it is not in E2
- A. \(\frac{3}{4}\)
- B. \(\frac{3}{10}\)
- C. \(\frac{1}{4}\)
- D. \(\frac{1}{20}\)
44
What is the next number in the series 2, 1, \(\frac{1}{2}\), \(\frac{1}{4}\)…
- A. \(\frac{1}{3}\)
- B. \(\frac{2}{8}\)
- C. \(\frac{3}{7}\)
- D. \(\frac{1}{8}\)
45
Given T = { even numbers from 1 to 12 }
N = {common factors of 6, 8 and 12}
Find T ∩ N
- A. {2, 3}
- B. {2, 3, 4}
- C. {3, 4, 6}
- D. {2}