Question

A brick staircase has a total of 30 steps. The bottom step requires 100 bricks. Each
successive step requires two bricks less than the previous step.
(i) How many bricks are required for the top most step?
(ii) How many bricks are required to build the stair case?
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Answer 1

Answer:

Step-by-step explanation:

i 40

30*2=60 100-60=40

ii IDK