Question

Calculate the total distance covered by a moving bus if it moves with a speed of 45 km/h for 15 min and then with a speed of 40 km/h for the next 20 min ?​

Answer 1

Question:

Calculate the total distance covered by a moving bus if it moves with a speed of 45 km/h for 15 min and then with a speed of 40 km/h for the next 20 min ?

Explanation:

Speed(S1)=45km/hr

Time(T1)=15 min.{(1min.=60sec) (15min.=15/60)hr}

Distance=(D1)= (S1×T1)=45×15/60=11.25km

Speed(S2)=40km/hr

Time(T2)=20min..{(1min.=60sec) (20min.=20/60)hr}

Distance (D2)= (S1×T1)=40×20/60=13.3(bar)

Total Distance covered=d1+d2

Answer 2

Answer:

The total distance covered by a moving bus = 24.58 km

Step-by-step explanation:

Given:

• Speed of a moving bus, S₁ = 45 km/h
• Time taken by a bus, T₁ = 15 min = 15/60 h ( because 1 min = 1/60 h )
• Speed of a moving bus, S₂ = 40 km/h
• Time taken by a bus, T₂ = 20 min = 20/60 h

To find:

• The total distance covered by a moving bus.

Solution:

Here, we will use the formula to calculate the distance when the speed and time are given. First we will find distance 1 and then the distance 2, after that we will add them up to find the total distance.

Let's find out...

✰ Distance = Speed × Time

• D₁ = S₁ × T₁
• D₁ = 45 × 15/60
• D₁ = 9 × 15/12
• D₁ = 3 × 15/4
• D₁ = 45/4
• D₁ = 11.25 km

• D₂ = S₂ × T₂
• D₂ = 40 × 20/60
• D₂ = 40 × 2/6
• D₂ = 40 × 1/3
• D₂ = 40/3
• D₂ = 13.33 km

Now,

• Total distance travelled = D₁ + D₂
• Total distance travelled = 11.25 + 13.33
• Total distance travelled = 24.58

∴ The total distance covered by a moving bus = 24.58 km

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