# Arithmetic & Geometric Progressions

Arithmetic Progression, Geometric Progression, Harmonic Progression: Definition, Arithmetic Progression Formula, Geometric Progression Formula, Solved Problems

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## Online Aptitude Questions with Answers on Arithmetic & Geometric Progressions

Q21. <Find the ratio between the 4th and 8th terms of the sequence defined by a(n)=(-1)n n3> ![enter image description here][1] [1]: https://storage.googleapis.com/codegrounds/questionImages/611a5acc-fe10-4b96-9582-cbdfb33c8745_USER-RecruiterCopy_ITEM-Capture.PNG

1.  3:5
2.  5:3
3.  1:8
4.  8:1

Solution : 1:8
Q22. **What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?**

1.  897
2.  1,64,850
3.  1,64,749
4.  1,49,700

Solution : 1,64,850

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Q23. **Find the sum of all natural numbers up to 1000, which are divisible by 5 but not by 2.**

1.  10,050
2.  5050
3.  5000
4.  50,000

Solution : 50,000
Q24. **Determine the rth term of an A.P. whose 6th term is 12 and 8th term is 22**

1.  3r-7
2.  5r-18
3.  2r-6
4.  5r-9

Solution : 5r-18

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Q25. **The sum of the three numbers in A.P is 21 and the product of the first and third number of the sequence is 45. What are the three numbers?**

1.  5, 7, and 9
2.  9, 7, and 5
3.  3, 7, and 11
4.  Both (1) and (2)

Solution : Both (1) and (2)
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Solution :

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