exam Maths Puzzle Numerical Ability

Can you please help my son with this problem: 12 chirps/min

using the formula F= n/4 + 37

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exam Other Question

Solve for x:
100=2000/x
A total of 720 people attended the school basketball game. Adult tickets cost $2.50 each and student tickets cost $1.50 each. If $1220 worth of tickets were sold how many students and how many adults attended?