Solution:
Given that,
In a certain card game, for every 4 blue cards, there are 3 yellow cards
Therefore,
Ratio is given as:
blue card : yellow card = 4 : 3
Let the number of blue card = 4x
Let the number of yellow card = 3x
There are a total of 84 blue and yellow cards in the game
Therefore,
4x + 3x = 84
7x = 84
x = 12
Therefore,
number of blue card = 4x = 4(12) = 48
number of yellow card = 3x = 3(12) = 36
Thus there are 48 blue cards and 36 yellow cards