Question 1(b)
In a mathematics test, the following marks were obtained by 40 students. Arrange these marks on a table using tally marks.
How many students obtained marks below 4?
Question 1(a)
Find how many students obtained marks equal to or more than 7?
If A = {1, 2, 3, 4}
B = {3, 4, 5, 6, 7}
C = {6, 7, 8, 9}
D = {7, 8, 9, 10}
ColumnAColumnB1.A∪B a. {3,4,6,7} 2.A∩B b. ∅ 3.(B∩C)∪D c. {3,4} 4. B∪C∪D d. {3,4,5,6,7,8,9,10} 5. (A∩B)∩(B∪C) e. {1,2,3,4,5,6,7} f. {6,7,8,9,10} g. {7}