Question

The number of students in a music class is increasing month after month as follows. Find the number of students in June from the following information.

A 40 Correct Answer Incorrect Answer
B 80 Correct Answer Incorrect Answer
C 60 Correct Answer Incorrect Answer
D 50 Correct Answer Incorrect Answer

Solution

January = 5 February = 5 + 12 = 6  March = 6 + 22 = 10 April = 10 + 32  = 19 May = 19 + 42 = 35 June = 35 + 52 = 60

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