Three boxes contain counters There are 63 counters in total The total number of counters in box A and box B is 36. The difference between the number of counters in box A and box C is 10 Work out the number of counters in each box
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First step is to solve for x:
There is a total of 75 counters in the three boxes:
Counters in box A + counters in box B + counters in box C = 75
x + (2x+7) + (3x−4) = 75
6x + 3 = 75
6x = 72
x = 12
Next we calculate the number of counters in box B
= 2x+7
= 24+7
= 31
Box B has 31 counters
There is a total of 75 counters in the three boxes:
Counters in box A + counters in box B + counters in box C = 75
x + (2x+7) + (3x−4) = 75
6x + 3 = 75
6x = 72
x = 12
Next we calculate the number of counters in box B
= 2x+7
= 24+7
= 31
Box B has 31 counters
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