Word problem - help!

Mathematics
Tutor: None Selected Time limit: 1 Day

Gina visited the aquarium with some of her cousins, aunts and uncles.  The group bought 20 admission tickets for $340.   Adult tickets cost $20 and children's tickets cost $15. How many adult and children tickets did the group buy?

May 28th, 2015

let x number of adults and y number of children visited aquarium

hence x +y = 20    ------------(1)

20x+15y =340     --------------( 2)

multiplying 15 in equation 1  we get     15 x +15y =300   -----------(1A)

 subtracting Eq 1A  with eq 2 we get

5x =40   or x =40/8 =5

hence y = 20-5 =15

Answer :  Adults 5  & Children = 15


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May 28th, 2015

Thank you!

May 28th, 2015

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