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Maths Puzzle
Numerical Ability
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Adult tickets for a play cost $11 and child tickets cost $10. If there were 23 people at a performance and the theater collected $246 from ticket sales, how many children attended the play?
In triangle ABC, AB is 9 cm. shorter that AC, while BC is 3 cm. longer than AC. If the perimeter of the triangle is 48 cm. find the lengths of the three sides.