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The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amount to 155 is (a) 30 (b) 31 (c) Both (a) and (b) (d)None of these?
Most Upvoted Answer
The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amou...
Solution:
The given series is 10, 9(2/3), 9(1/3), ...
The common ratio of the series is (2/3)
Let the number of terms be 'n'
∴ 10 x (2/3)^(n-1) = 1 55
On solving this equation, we get n = 31
Hence, the number of terms in the series is 31.
Answer: Option (b) 31
The given series is 10, 9(2/3), 9(1/3), ...
The common ratio of the series is (2/3)
Let the number of terms be 'n'
∴ 10 x (2/3)^(n-1) = 1 55
On solving this equation, we get n = 31
Hence, the number of terms in the series is 31.
Answer: Option (b) 31
Community Answer
The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amou...
10, 9 2/3,9 1/3, 9
d= -1/3
a= 10
Sn= n/2 [2a + (n - 1)(-1/3)]
Sn=155= n/2 [2(10)+ [-n/3 + 1/3]]
310=n[20 + [-n/3 + 1/3]]
lets try the options (A) and (B)
d= -1/3
a= 10
Sn= n/2 [2a + (n - 1)(-1/3)]
Sn=155= n/2 [2(10)+ [-n/3 + 1/3]]
310=n[20 + [-n/3 + 1/3]]
lets try the options (A) and (B)
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The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amount to 155 is (a) 30 (b) 31 (c) Both (a) and (b) (d)None of these?
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The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amount to 155 is (a) 30 (b) 31 (c) Both (a) and (b) (d)None of these? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amount to 155 is (a) 30 (b) 31 (c) Both (a) and (b) (d)None of these? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amount to 155 is (a) 30 (b) 31 (c) Both (a) and (b) (d)None of these?.
The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amount to 155 is (a) 30 (b) 31 (c) Both (a) and (b) (d)None of these? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amount to 155 is (a) 30 (b) 31 (c) Both (a) and (b) (d)None of these? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The number of the terms of the series 10 9(2)/(3) 9(1)/(3) . will amount to 155 is (a) 30 (b) 31 (c) Both (a) and (b) (d)None of these?.
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