Machine A and B produce 8000 clips in 4 hr and 6 hr respectively. They work alternately for 1 hour. Starting first with A, then 8000 chips will be produced in ..........................hours.
Answer
Chips produced by A in 1 hours = 8000/4 = 2000
Chips produced by B in 1 hours = 8000/6 = 1333.33
In 2 hours A and B will produce = 3333.33
So, in 4 hours A and B will produce = 6666.67
chips left = 8000-6666.67 = 1333.33
Time taken by A to complete 1333.33 chips
= 1333.33/2000 = 0.67 hour.
So, total time required = 4 + 0.67 = 4.67 hours
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Answer
Chips produced by A in 1 hours = 8000/4 = 2000
Chips produced by B in 1 hours = 8000/6 = 1333.33
In 2 hours A and B will produce = 3333.33
So, in 4 hours A and B will produce = 6666.67
chips left = 8000-6666.67 = 1333.33
Time taken by A to complete 1333.33 chips
= 1333.33/2000 = 0.67 hour.
So, total time required = 4 + 0.67 = 4.67 hours
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