Problema Solution
An shop sells steel nails at 50c each and screws at R1.25 each. they sell 300 items for R252. Calculate the number of nails sold.
Answer provided by our tutors
R1 = 100 c
50c = R0.5
Let 'x' represent the number of nails sold, v>=0.
Then 300 - x is the number of screws sold, 300 - x >= 0, x<=300
0.5x + 1.25(300 - x) = 252
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click here to see the equation solved for x
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x = 164 nails
The number of nails sold is 164.