Displaying Data, SM-Bank 018 MC

Natalie is the supervisor of the Maths club and keeps a record of the number of students in the club at the end of each week.

If no students have left the club, how many joined in Week 3?

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\(A\)

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\(\text{Students in club:}\)

\(\text{At the end of week 2 = 16}\)

\(\text{At the end of week 3 = 21}\)

\(\therefore\ \text{Students who joined in week 3}\)

\(=21-16\)

\(=5\)

\(\Rightarrow A\)