Question

pls tell me the answer fast​

Answer 1

Answer:

Step-by-step explanation:

we know that,

speed is calculated and distance covered per unit time.

speed = distance / time

given,

boat covers 4km in 1 hr

speed of boat-

4km/1hr

=> 4km/hr

now

time = Distance/ speed

so time to travel 10 I'm

10km/4km/hr

=> 2.5 hr

hence the time required by the boat to cover 10kilometers is 2.5 hour.

Answer 2

Given :–

• A log boat can travel about 4 km in 1 hr.

To Find :–

• Time taken by a log boat to covered the distance 20 km.

Solution :–

First, we need to find the speed.

We know that,

● $Speed \: = \dfrac{Distance}{Time}$

• Distance = 4km.
• Time = 1hr.

→ $\dfrac{4}{1} km hr$

• Speed = 4 km/hr

Now, we have,

• Distance = 20 km.
• Speed = 4 km/hr.

We know that,

● $Time = \dfrac{Distance}{Speed}$

Now, put the values of speed and distance in the formula of time.

→ $\dfrac{20 \: \cancel{km}/hr}{4 \: \cancel{km}}$

→ $\dfrac{ \cancel{20}}{ \cancel4} hr$

→ $5 \: hr$

Hence,

The time taken by a boat to covered the distance 20 km is 5 hrs.