3 years ago

Can someone help me out my grads are bad

Mathematics

2 answers:

padilas [110]3 years ago

6 0

Its the top left one

ra1l [238]3 years ago

5 0

Top left one!!! goodluck

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stellarik [79]

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3 years ago

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RoseWind [281]

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3 years ago

A train 100 m long crosses a pole in 5 seconds.Find the speed of the train in kilometre per hour.

In-s [12.5K]

Answer:

$\sf72 km/h$

Step-by-step explanation:

Distance covered by the train in crossing the pole = 100 m.

$\sf Time \: taken=5 \: seconds$

$\sf \: Speed \: of \: the \: train = \frac{Distance }{Time}$

$\sf = \frac{100}{5} \: m/s$

$\sf \: = 20 \: m/s$

$\sf \: = 20 \times \frac{18}{5} \: km/h$

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3 years ago