Eduardo86 wrote:
On a certain exam, 2/5 of the questions involve reading comprehension and 1/4 of the remaining questions test critical reasoning. If the exam contained c critical reasoning questions, how many reading comprehension questions did the exam include, in terms of c?
A) 3/(20c)
B) 3c/8
C) 8c/5
D) 8c/3
E) 20c/3
Spoiler: ::
I found the answer but more with picking number. Who can explain to me how to set up an algebraic equation for this problem?
Thanks so much toeveryone
Thanks so much toeveryone
Let Total questions be 20
Total RC
...
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