Question

1.A pedestrian crosswalk consists of black and white strips each 0.4m wide. The crosswalk begins and ends with a white strip, and there are 8 white strips in all. How wide is the crosswalk?

Answer 1

The width of the crosswalk is 6.4m.

Step-by-step explanation:

To determine the width of the crosswalk, we need to calculate the total width of the white strips and the black strips.

Since there are 8 white strips and each strip is 0.4m wide, the total width of the white strips is 8 x 0.4m = 3.2m.

The black strips are also 0.4m wide, so the total width of the black strips is 3.2m as well.

Adding the width of the white strips and the black strips together, we find that the width of the crosswalk is 3.2m + 3.2m = 6.4m.

Answer 2

Answer: 6m

Step-by-step explanation:

Given data:

Width of the strips on the cross walk = 0.4m

No of white strips on the cross walk = 8.

No of black strips = 7

Solution:

Since they are 8 whites, and the cross walks starts and ends with a white stripe.

This simply means they are 7 black stripes

Width of the cross walk

= 7 + 8 * 0.4m

= 15 + 0.4m

= 6m

Width of the cross walk is 6m.