Distance between A and B is 50 km. Speed of Saurabh is 10 km/h, and th

1.	Distance between A and B is 50 km. Speed of Saurabh is 10 km/h, and the speed of Shivam is 2 km/h then, what percent of speed Shivam should be increased from the second hour to reach at point B with Saurabh. If the both persons start at the same time.1. 200%2. 300%3. 400%4. 500%
Answer» Correct Answer - Option 4 : 500% Given: Speed of Saurabh = 10 km/h Speed of Shivam = 2 km/h Concept used: Speed = Distance/time Distance = Speed × time Calculations: Time taken by Saurabh to cover the distance = Distance/speed ⇒ 50/10 = 5 The speed of Shivam = 2 km/h Distance travel by Shivam in one hour = 2 km Remaining distance = 50 – 2 = 48 km Remaining hours for Shivam to travels the remaining distance = 4 hours Speed needs to travel 48 km in 4 hours = 48/4 = 12 km/h Speed which Shivam should increase from second hour = 12 – 2 = 10 km/h ∴ Percent increase which is required in Shivam’s speed = (10/2) × 100 = 500%

Distance between A and B is 50 km. Speed of Saurabh is 10 km/h, and the speed of Shivam is 2 km/h then, what percent of speed Shivam should be increased from the second hour to reach at point B with Saurabh. If the both persons start at the same time.1. 200%2. 300%3. 400%4. 500%

Answer» Correct Answer - Option 4 : 500%

Given:

Speed of Saurabh = 10 km/h

Speed of Shivam = 2 km/h

Concept used:

Speed = Distance/time

Distance = Speed × time

Calculations:

Time taken by Saurabh to cover the distance = Distance/speed

⇒ 50/10 = 5

The speed of Shivam = 2 km/h

Distance travel by Shivam in one hour = 2 km

Remaining distance = 50 – 2 = 48 km

Remaining hours for Shivam to travels the remaining distance = 4 hours

Speed needs to travel 48 km in 4 hours = 48/4 = 12 km/h

Speed which Shivam should increase from second hour = 12 – 2 = 10 km/h

∴ Percent increase which is required in Shivam’s speed = (10/2) × 100 = 500%

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