Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 22,594

1. The first term of an Arithmetic Progression is 8 and the common difference is 10. Find the Arithmetic Progression and its general term.

2. Which term of the sequence 14, 19, 24, ........ is 84?

3. Find the middle term of an Arithmetic Progression 7, 11, ....... 55.

4. The 5th term of an Arithmetic Progression is 27 and the 8th term is 12. Determine the Arithmetic Progression.

5. Which term of the Arithmetic Progression 19, 18 1/5, 17 2/5......is the first negative term?

6. The sum of three numbers in Arithmetic Progression is 54 and their product is 5670. Find the numbers.

7. The interior angles of a polygon are in Arithmetic Progression. The smallest angle is 120° and the common difference is 5°. Find the number of sides of the polygon.

8. Which term of the Geometric Progression 1, 2, 4, 8, 16, ..... is 4096?

9. Find the three numbers in Geometric Progression such that their sum is 14 and product is 64.

10. Find the sum 1+ 4 + 16 + 64 to 10 terms.

11. Find the least value of n such that the sum 1 + 3 + 9 + 27 +.... is greater than 7000.

12. Find the value of

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

Pages: **1**