3.(a) In a survey of a school, 300 students favour to play volleyball, 250 favour to play cricket and 110 favour both of the games. Draw a Venn-diagram and calculate
i. the number of students who play cricket only.
ii.
the number of students who play either volleyball or cricket.
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Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236