The amount of springs the machine will make by 6 pm is; 96 strings
We are given that;
Amount of paper clips machine can make in an hour = 300 paper clips
Amount of strings the machine can make in an hour = 360 strings
Now, the machine starts working at 1pm and makes 450 paper clips.
Thus, time taken = 450/360 = 1.25 hours
This is at 2:15 pm
By 6pm, time taken would be 6:00 - 2:15 = 3:45 or 3.75 hours
Thus, number of springs made = 360/3.75 = 96 springs
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