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Arithmetic Progression - Quant/Math - CAT 2009
Question 4 the day:
May 9, 2003
The question for the day is from the topic of Arithmetic Progression.
- If 5 times the fifth term is 8 times the 8th term in an A.P, Find the 13th term in the series.
| (1) |
1 |
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(2) |
0 |
| (3) |
13 |
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(4) |
Cannot be determined |
Correct Answer - (2)
Solution:
Fifth term = a + 4d.
Eighth term = a + 7d.
From the statement 5(a + 4d) = 8(a + 7d)
5a + 20d = 8a + 56d
3a + 36d = 0 => a + 12d = 0.
13th term of the series is 0.
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