Select Board & Class


Arithmetic Progressions

Question 5:

A small terrace at a football ground comprises of 15 steps each of which is 50 m long and built of solid concrete.

Each step has a rise of m and a tread of m (See figure) calculate the total volume of concrete required to build the terrace.


From the figure, it can be observed that

1st step is m wide,

2nd step is 1 m wide,

3rd step is m wide.

Therefore, the width of each step is increas…

To view the solution to this question please

What are you looking for?