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15 December, 07:51

The Rusty Metal Roller Coaster at the fair charges $2.50 for children and $4 for adults. Before the safety inspector shuts down the ride, 260 people ride it and $815 is collected. How many adults rode the coaster?

A.

80

B.

110

C.

150

D.

240

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Answers (1)
  1. 15 December, 08:24
    0
    B, 110

    Step-by-step explanation:

    Work Backwards!

    1. - 260 - 110 = 150 children

    2. - 150 X $2.50 (rate of children) = $375

    3. - $815 - $375 = $440

    4. - $440/$4 (rate of adults) = 110 Adults
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