A car can fill a box with twenty pencils in 30 seconds. How many boxes can the machine fill in 2 hours?
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1hour =60×60=3600sec
2hour=3600×2=7200sec
car fill a box in30 seconds=20 pencils
car fill box in 1 sec =20/30 pencils.
car will fill in 3600sec =7200×20/30
=2400×2
=4800 pencils
A box contains 20 pencils.
so 4800 pencil are contained by =4800/20=240 boxes
HOPE IT WILL HELP YOU
2hour=3600×2=7200sec
car fill a box in30 seconds=20 pencils
car fill box in 1 sec =20/30 pencils.
car will fill in 3600sec =7200×20/30
=2400×2
=4800 pencils
A box contains 20 pencils.
so 4800 pencil are contained by =4800/20=240 boxes
HOPE IT WILL HELP YOU
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