Calculate the speed of the bus if it covered 280km in 3hrs and 15 min.
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the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
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Distance travelled by bus = 180 km
Time taken = 3 hours
Speed = \frac{Dis\tan ce}{Time}=\frac{180}{3}=60km/hr
Time
Distance
=
3
180
=60km/hr
Distance travelled by train = 450 km
Time taken = 5 hours
Speed = \frac{Dis\tan ce}{Time}=\frac{450}{5}=90km/hr
Time
Distance
=
5
450
=90km/hr
Ratio of speed of train to speed of bus = 90 : 60 = 3 : 2
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