Sum a finite geometric series
11th grade (Year 12 in England) · 16 questions · Common Core: HSA.SSE.B.4 · England: A-level Pure Mathematics
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Score/ 16
Question 1
Arjun saves $5 in week 1 and doubles the amount saved each week. How much has Arjun saved in total after 9 weeks? Give the amount as a number.
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Question 2
Find the sum of the first 4 terms of 1 + 3 + 9 + …
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Question 3
Find the sum of the first 4 terms of 48 + 24 + 12 + …
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Question 4
Liam saves $1 in week 1 and doubles the amount saved each week. How much has Liam saved in total after 8 weeks? Give the amount as a number.
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Question 5
Find the sum of the first 7 terms of 6 + 12 + 24 + …
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Question 6
Find the sum of the first 5 terms of 96 + 48 + 24 + …
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Question 7
Mateo saves $5 in week 1 and doubles the amount saved each week. How much has Mateo saved in total after 9 weeks? Give the amount as a number.
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Question 8
Find the sum of the first 4 terms of 2 + 6 + 18 + …
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Question 9
Find the sum of the first 7 terms of 128 + 64 + 32 + …
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Question 10
Jamal saves $5 in week 1 and doubles the amount saved each week. How much has Jamal saved in total after 8 weeks? Give the amount as a number.
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Question 11
Find the sum of the first 5 terms of 6 − 12 + 24 + …
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Question 12
Find the sum of the first 7 terms of 256 + 128 + 64 + …
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Question 13
Ines saves $1 in week 1 and doubles the amount saved each week. How much has Ines saved in total after 9 weeks? Give the amount as a number.
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Question 14
Find the sum of the first 4 terms of 6 − 12 + 24 + …
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Question 15
Find the sum of the first 4 terms of 16 + 8 + 4 + …
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Question 16
Yuki saves $2 in week 1 and doubles the amount saved each week. How much has Yuki saved in total after 7 weeks? Give the amount as a number.
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