Geometric Series
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
State the formula for the sum of the first n terms of a geometric series (r≠1).
📘 Worked solution
✓Sₙ=a(rⁿ−1)/(r−1).
And one from the hard end
Find the sum of the first 4 terms of 300+150+75+... (a=300, r=0.5).
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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