Question

Barry's deck of cards contains 40 blue cards and 70 red cards max's deck of cards contains the same number of blue cards but the ratio blue cards to red cards 8:9 how many total cards do s max's deck of cards contain

Answer 1

Since Max's deck of cards contains the same number of blue cards as Barry's,
letting x as the number of red cards in Max's deck of card
40 / x = 8 / 9
Solving for x
360 = 8x
x = 45

There are a total of 40 + 45 = 85 cards in Barry's deck of cards