Math test

Obelix filled out a mathematical test in which he answered 25 questions. For every correct answer, he received 5 points. For each wrong answer, he had 3 points deducted. Obelix gained 36% of all points in the test. How many questions did he solve correctly?

Correct answer:

n =  15

Step-by-step explanation:

p=36%=10036=259=0.36 t=25  5n3(tn)=p t 5 5n3(25n)=0.36 25 5  5 n3 (25n)=0.36 25 5  8n=120  n=8120=15  n=15



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Showing 1 comment:
Math+student
Q: What is 3 1/2 + 4 1/2

A: Result is 8... 3+4=7 1/2+1/2 = 1 ; 7+1 = 8





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