Question

Preeti walked 5 km in 40 minutes and Raunak walked 8 km in 60 minutes. Find the ratio of their walking

speed​

Answer 1

Answer:

4:5 is correct answer of this question

Answer 2

Answer:

• Ratio of Preethi speed to Raunak speed = 15 : 16

Step-by-step explanation:

Given

• Distance travelled by Preethi = 5 Km
• Time taken by Preethi = 40 minutes
• Distance travelled by Raunak = 8 Km
• Time taken by Raunak = 60 minutes

To find

• The ratio of their speed's

Solution

Preethi speed :-

• Speed = Distance/Time
• Speed = 5000/2400
• Speed = 50/24

We converted the distance and time to S.I unit.

• Distance = 5 Km = 5(1000)m = 5000 m
• Time = 40 min = 40(60)sec = 2400 sec

Hence, the speed of Preethi is 50/24 m/s

Raunak speed :-

• Speed = Distance/Time
• Speed = 8000/3600
• Speed = 80/36

We converted the distance and time to S.I unit.

• Distance = 8 Km = 8(1000)m = 8000 m
• Time = 60 min = 60(60)sec = 3600 sec

Hence, the speed of Raunak is 80/36 m/s

Ratio of Preethi and Raunak speed's :-

• Preethi speed : Raunak speed
• 50/24 : 80/36
• 50/24÷80/36
• 50/24÷36/80
• 5×36/24×8
• 180/192
• 45/48
• 15/16

Hence, the required ratio is 15 : 16