Home
Class 14
MATHS
A tractor can finish its journey in 8 ho...

A tractor can finish its journey in 8 hours at the speed of `60km//hr` speed. IF the same distance must be covered in 5 hours, what should be the speed of the tractor

A

`96km//hr`

B

`90km//hr`

C

`80km//hr`

D

`86km//hr`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem step by step, we can follow these calculations: ### Step 1: Calculate the Distance We know that distance can be calculated using the formula: \[ \text{Distance} = \text{Speed} \times \text{Time} \] Given: - Speed = 60 km/hr - Time = 8 hours So, we can calculate the distance (D): \[ D = 60 \, \text{km/hr} \times 8 \, \text{hours} \] \[ D = 480 \, \text{km} \] ### Step 2: Determine the Required Speed for the New Time Now, we need to find the speed required to cover the same distance (480 km) in a different time (5 hours). Using the formula for speed: \[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \] Here, the distance is still 480 km, and the new time (T') is 5 hours. So, we can calculate the required speed (S'): \[ S' = \frac{480 \, \text{km}}{5 \, \text{hours}} \] ### Step 3: Perform the Calculation Now, we perform the division: \[ S' = 96 \, \text{km/hr} \] ### Conclusion The speed of the tractor should be 96 km/hr to cover the distance in 5 hours. ---
Promotional Banner