exam Maths Puzzle Numerical Ability

(x/7)-(1/4)<=(x/3)+1

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exam Other Question

Adult tickets for a play cost $15 and child tickets cost $6. If there were 33 people at a performance and the theater collected $360 from ticket sales, how many children attended the play? If f(x)=3(1/125)^(x-2)+12 , then what is the value of x when f(x)=87?