Explanation

1 acre = 100 cents  

1 acre = 43,560 square feet  

So,  

1 cent = 43,560 sq ft ÷ 100 = 435.6 sq ft

Explanation

Step 1: Calculate the perimeter of the square ground.

The perimeter of a square is given by P = 4 × side length. Here, the side length is 20 meters.

P = 4 × 20 = 80 meters

Step 2: Calculate the total distance covered in 5 rounds.

Total distance = Number of rounds × Perimeter

Total distance = 5 × 80 = 400 meters

Explanation

Let the distance between the police officer's house and office be D km.
Let the actual time required to reach the office on time be T hours.

Step 1: Forming Equations

Using the speed-time formula:

$$text{Time} = frac{text{Distance}}{text{Speed}}$$Speed​

Case 1: Walking at 4 km/h

D/4​​=T+5/60​

(since he is 5 minutes late, which is 5/60 hours)

Case 2: Walking at 5 km/h

D5​=T−10/60​

(since he is 10 minutes early, which is 10/60 hours)

Step 2: Solving for Distance

From the first equation:

T=D/4​−5/60​

From the second equation:

T=D/5​+10/60​

Equating both expressions for T:

D/4​−5/60​=D/5​+10/60​

Multiply everything by 60 to clear the fractions:

$$60 times left( frac{D}{4} - frac{5}{60} right) = 60 times left( frac{D}{5} + frac{10}{60} right)$$15D−5=12D+10
$$15D-12D=10+5$$$$3D = 15$$ $$D = 5 text{ km}$$

Explanation

To find the time it takes to travel 120 km:

Speed = Distance / Time = 200 km / 1 hour = 200 km/h

Time to travel 120 km = Distance / Speed

= 120 km / 200 km/h

= 0.6 hours

Convert hours to minutes:

0.6 hours * 60 minutes/hour = 36 minutes

The correct answer is: 36 minutes

Explanation

Given:

• Speed from A to B = 40 km/h

• Speed from B to A = 40 km/h + 50% of 40 km/h = 40 + 20 = 60 km/h

Find:

Average speed for the whole journey (both ways).

Formula for average speed when distance is the same but speeds differ:

Plug in values:

=4800/100

=48 km/h

Explanation

Explanation

To convert km/h to m/s:

Speed (m/s) = (Speed in km/h × 1000) ÷ 3600

= (45 × 1000) ÷ 3600 = 12.5 m/s

Explanation

In 1/h hour the student solves q questions

In 1/h*h hours the student will solve q*h questions

That is in 1 hour the student will solve q*h questions.

So in q hours, the student will solve q*q*h questions

So your answer is:-  q²h questions

Sh31-8-2023

Explanation

Explanation

1 square meter = (1 meter)² = (1.0936 yards)²  

= 1.1959 square yards