SOLUTION: On a math test the total number of points possible is 100 points. There are 36 questions on the test. Questions are worth 1 point, 3 points, or 5 points. The number of 3- point qu

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Question 437502: On a math test the total number of points possible is 100 points. There are 36 questions on the test. Questions are worth 1 point, 3 points, or 5 points. The number of 3- point questions is twice the number of 1-point questions. How many 5-point questions are there on the test?
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
a+b+c=36
a+3b+5c=100
b=2a
a=10
b=20
c=6
check
10+60+30=100
ok