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A sporting goods store order an equal amount of yellow and white tennis balls. The tennis ball company delivered extra 30 white tennis balls making the ratio of white to yellow balls 6:5 how many yellow balls did the store originally order?

Answer :

4804174623

Initial ratio W/Y=1

new ratio (w+30)/y=6/5, or substituting w for y you get 6w=5w+150 or w=150.

then y=150, so the shop ordered 300 balls initially, 150 each

Hope this helped

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