Question

an aeroplane takes 1 hour 40 minutes to cover a distance 1350 kilometre whereas a helicopter takes 2 hour and 40 minutes to cover a distance of 600 kilometre find the ratio of the speed of the two​

Answer 1

Step-by-step explanation:

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Answer 2

ratio of the speed of the two​ is 18:5

Step-by-step explanation:

for aeroplane

time taken = 1 hr 40 min = $1+\frac{2}{3} = \frac{5}{3}$ hours

distance = 1350 km

speed = $\frac{distance }{time}$ = $\frac{1350}{\frac{5}{3} }$

= $\frac{1350\times 3}{5}$

= 810 km/h

for helicopter

time taken = 2 hr 40 min = $2+\frac{2}{3} = \frac{8}{3}$ hrs

distance = 600 km

speed = $\frac{distance }{time}$ = $\frac{600}{\frac{8}{3} }$

= $\frac{600\times 3}{8}$

= 225 km/h

then ratio of their speeds are  810 : 225  = 18:5

hence ,

ratio of the speed of the two​ is 18:5

#Learn more:

An aeroplane takes 1 hour 40 minutes to cover a distance 1250 kilometre where is helicopter takes 2 hours and 40 minutes to cover a distance of 400 kilometre find the ratio of the speed of the two​

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