Question

student walk 2.5 kilometre in 50 minutes on the way to school and then will rising he was late Ram the remaining 0.5 km in 2.5 minutes calculate its average speed on the way to the school​

Answer 1

Given :

• Distance d₁ = 2.5 km = 2500 m
• Distance d₂ = 0.5 km = 500 m
• Time t₁ = 50 minutes = 3000 seconds
• Time t₂ = 2.5 minutes = 150 seconds

To find :

• Average speed

Solution :

• We know that,

        distance = speed × time

     ∴ Speed = distance ÷ time

• Also,

        Average speed = (total distance traveled) ÷ (total time taken)

     ∴ Average speed = (2500+500)÷(3150)

                                   = 0.95 m/s

                                   = 0.95 × (18/5) km/hr

                                   = 3.492 km/hr

Answer : The average speed throughout the journey will be 3.492 km/hr.