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IFoA_CAA_M0 Exam - Topic 5 Question 69 Discussion

Actual exam question for IFoA's IFoA_CAA_M0 exam
Question #: 69
Topic #: 5
[All IFoA_CAA_M0 Questions]

Calculate the sum of the followingnon-terminating progression:

2/10, 2/40, 2/160, 2/640,...

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Suggested Answer: C

by Bette at Sep 11, 2024, 01:25 AM

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Phil
6 months ago
The first term is 2/10 and the ratio is 1/4.
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Niesha
6 months ago
Totally agree, C seems right!
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Francine
6 months ago
Wait, are you sure about that?
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Carmen
7 months ago
I think the sum is around 0.267.
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Elza
7 months ago
This is a geometric series!
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Aliza
7 months ago
I believe the common ratio is 1/4, but I’m not entirely confident about the calculations. I should double-check my work!
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Brock
7 months ago
I’m a bit lost on how to apply the formula for the sum of an infinite series. Is it just a/(1-r) for this type?
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Laquanda
7 months ago
I remember practicing similar questions where we had to identify the first term and the common ratio. I think the first term here is 2/10.
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Bette
8 months ago
I think this is a geometric series, but I'm not sure how to find the sum of a non-terminating one.
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Rebecka
8 months ago
Okay, I think I've got it. The common ratio is 1/4, so I can use the formula to calculate the sum. I'm feeling good about this one.
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Janet
8 months ago
This is tricky. I'm not confident I can solve this quickly during the exam. I'll need to think it through step-by-step.
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Johnetta
8 months ago
I've seen problems like this before. If I can identify the common ratio, I should be able to find the sum of the series.
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Ettie
8 months ago
Hmm, I'm not sure how to approach this one. The numbers in the progression don't seem to have a clear pattern. I might need to try a different strategy.
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Carlota
8 months ago
Okay, this looks like a geometric progression problem. I think I can use the formula for the sum of an infinite geometric series to solve this.
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Gussie
8 months ago
Ah, I see. Disabling the Go Live Approval and continuing the build despite failures is probably the fastest way to get this hot-fix out there. I'll make sure to document this for the dev team, though, in case it causes any issues down the line.
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Aleta
1 year ago
Is it just me, or does this progression look like it's trying to hypnotize me? Focus, Aleta, focus!
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Portia
1 year ago
C) 0.267
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Rolande
1 year ago
B) 0.266
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Iola
1 year ago
A) 0.174
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Royce
1 year ago
Man, I wish I had a crystal ball to see the answer. Maybe I can just guess and hope for the best?
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Nikita
1 year ago
Okay, time to bust out the calculator and start crunching the numbers. This better not be one of those sneaky questions.
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Ivette
11 months ago
D) 0.406
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Stefania
1 year ago
C) 0.267
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Allene
1 year ago
B) 0.266
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Stevie
1 year ago
A) 0.174
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Truman
1 year ago
Wait, is this a trick question? I feel like I'm missing something obvious.
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Bettina
1 year ago
Ooh, I love these geometric progression questions! Let's see, what's the common ratio here...
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Tomas
1 year ago
So the sum is 2/10 / (1 - 1/4) = 2/10 / (3/4) = 8/30 = 4/15 = 0.266.
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Blondell
1 year ago
The common ratio is 1/4.
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Stanford
1 year ago
So, the answer is B) 0.266.
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Lawanda
1 year ago
Which is equal to 0.266.
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Bea
1 year ago
So, the sum would be 2/10 / (1 - 1/4) = 2/10 / (3/4) = 8/30 = 4/15.
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Thaddeus
1 year ago
The common ratio is 1/4.
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Taryn
1 year ago
Hmm, this looks like a tricky one. I'll have to think through this step-by-step.
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Erick
1 year ago
I calculated it and got D) 0.406 as the answer.
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Josephine
1 year ago
I disagree, I believe the answer is C) 0.267.
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Haley
1 year ago
I think the answer is B) 0.266.
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