Problem:
The diameter of a wheel is 70 cm. Find out the distance covered by the wheel in 5 revolutions (π = 22/7).

Solution:

To find out the distance covered by the wheel in 5 revolutions, we need to calculate the circumference of the wheel and then multiply it by the number of revolutions.

Step 1: Calculate Circumference of the Wheel
The circumference of a circle can be calculated using the formula:

Circumference = π * Diameter

Given that the diameter of the wheel is 70 cm and π = 22/7, we can substitute these values in the formula:

Circumference = (22/7) * 70 cm

Calculating the value, we get:

Circumference = 220 cm

So, the circumference of the wheel is 220 cm.

Step 2: Calculate Distance Covered in 5 Revolutions
To find out the distance covered in 5 revolutions, we need to multiply the circumference of the wheel by the number of revolutions.

Distance Covered = Circumference * Number of Revolutions

Given that the number of revolutions is 5, we can substitute the values in the formula:

Distance Covered = 220 cm * 5

Calculating the value, we get:

Distance Covered = 1100 cm

So, the wheel covers a distance of 1100 cm in 5 revolutions.

Answer:
The wheel covers a distance of 1100 cm in 5 revolutions.