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Question

Part 1 of 2

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Part 1

There are two red jars of marbles and one blue jar of marbles. Jars of a certain color have the same number of marbles in them. There are

31

marbles in total. The difference between the number of marbles in a red jar and the number of marbles in a blue jar is

5.

Find the number of marbles in each type of jar.

Answer 1

2 red jars, 1 blue

31 total marbles in both jars

r-b=5

b=r-5

2r+b =31

2r -5 +r = 31

3r =31+5 =36

r =36/3 = 12 marbles in a red jar

b = 12-5=7 marbles in a blue jar

2(12) +7 = 24+7=31