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 of blue cards to red cards is 8:9. How many total cards does Max's deck of cards contain?

1 Answer
Martin C.
Mar 27, 2018

#95#

Explanation:

If the ratio is
#8:9#
and you know that there are 40 blue cards, than multiply the ratio by 5
#8*5:9*5#
#40:45#
If Max has 40 blue cards, he will have 45 red cards. Therefore, he has #40+45=95# cards in total.

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