Question

The speed of a train is increased from 80km/hr to 120km/s. Find the percentage increase.​

Answer 1

Answer:

8900%

Step-by-step explanation:

The original speed of train is 80km/hr

and the increased speed is 120km/hr=120x60/60

Answer 2

Percentage increase in the speed of train is 50%.

• Initial speed of the train = 80 km\hr
• Final speed of the train = 120 km\hr
• We have to find the percentage increase in the speed of train
• Formula to find the percentage increase in train is

Percentage increase = $\frac{ Increased \ speed }{ Initial \ speed }$ × 100

• Increased speed is calculated as,

Increased speed = Final speed - Initial speed

Increased speed = 120 - 80 = 40 km/hr

• Percentage increase = $\frac{40}{80}$ × 100

Percentage increase = 50 %