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If the sum of the third and se...
48
24
12
6
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What is an arithmetic progression (AP) and how is it defined?
Define the common difference in an arithmetic progression.
Find the first negative term in the AP: 121, 117, 113, ...
In a ladder with rungs 25 cm apart, the rungs decrease uniformly in length from 45 cm at the bottom to 25 cm at the top. Calculate the length of wood required for the rungs.