Question

You are researching the price of MP3 players. You found an average price of $58.80. One MP3 player cost $56 and another cost $62. Find the price of the third MP3 player. Check your Solution.

Answer 1

58.5 x 3 = 176.4
176.4-56-62 = 58.4
therefore the 3rd MP3 player costs $58.4

Answer 2

$58.40

Explanation:

The average price of MP3 player = $58.80

Price of one MP3 player = $56

cost of second MP3 player = $62

Let the third MP3 player costs = x

average price =
`(56+62+x)/(3)=$58.80`

=
`(56+62+x)/(3)* (3)=58.80* 3` [multiply both side by 3]

52 + 62 + x = 176.40

x + 118 = 176.40

x = 176.40 - 118

x = 58.4

The price of the third MP3 player would be $58.40

Check :

`((56+62+58.4))/(3)`= 58.80

=
`(176.40)/(3)` = 58.80

= $58.80