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A 40-question test has 108 possible points. There are m 4-point questions and n 2-point questions. How many of each type of questions are on the test?

User Shiv Buyya
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Sooo heres what I believe is the answer. 14 4 point questions and 26 2 point questions. 14 TIMES 4 EQUALS 56, 26 TIMES 2 EQUALS 52, 56 PLUS 52 EQUALS 108. Hope I helped.
User Jsea
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Answer: There are fourteen 4-point questions and twenty six 2-point questions.

Explanation:

Given : A 40-question test has 108 possible points.

There are m 4-point questions and n 2-point questions.

So , equation for total number of questions in the test :
m+n=40...(i)


4m+2n=108...(ii)

Multiplying (i) by 2 , we get


2m+2n=80...(iii)

Subtract (iii) from (ii) , we get


2m=28\\\\\Rightarrow\ m=(28)/(2)=14

Using value of m in (i) , we get


14+n=40\Rightarrow\ n= 26

Hence, there are fourteen 4-point questions and twenty six 2-point questions.

User Pro Chess
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