Answer:
17 : 24
Step-by-step explanation:
Add the fraction of faulty cards.
[tex] \frac{4}{21} + \frac{3}{14} = \frac{17}{42} [/tex]
Now we find the amount of cards that are faulty
[tex] \frac{17}{42} \times \frac{294}{1} = 119[/tex]
The ratio will be 119 : 294
Which can be reduced to 17 : 24
