Question

# The cost of an adult ticket in an amusement park is $20, whereas the cost of a child ticket is$15. Find the expression for the amount of money (in dollars) required to purchase the tickets for a family with a number of adults and c number of children.

A
$(20+15) No worries! We‘ve got your back. Try BYJU‘S free classes today! B$(20c+15a)
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C
$(35c) No worries! We‘ve got your back. Try BYJU‘S free classes today! D$(20a+15c)
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Solution

## The correct option is D $(20a+15c)One adult's ticket cost =$20 Total number of adults in the family =a ∴ Cost of tickets for all a adults =$20a One child's ticket cost =$15 Total number of children in the family =c ∴ Cost of tickets for all c children =$15c Hence, the total cost of tickets towards a family trip in an amusement park with a adults and c children = Ticket cost for a adults + Ticket cost for c children =$(20a+15c). Therefore, option (d.) is the correct choice.

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