Posted by **partha** on Friday, September 20, 2013 at 2:29pm.

If the common difference of an A.P. is 7, then what is a20-a11?

?

1) 64

2) 65

3) 66

4) 63

## Answer this Question

## Related Questions

- 8th Grade Algebra-Radicals:Answer Check - 4. 311 + 411 Answer: 811 7. 72...
- Algebra II - Simplify: (s^711)/(s11) I think it is s^811 Is this correct??
- Math ( Can You check my Work?) - 1.an = 3n - 1 2. an = 2(2n - 3) 3.an = 4^n 4.an...
- amth/algebra - can someone help me with simplification: 20/5 - 1/5 my first ...
- Maths - The first term of an AP is 12 and that of a GP is 6. The common ...
- Math - an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3...
- Math - Can you please check these problems? 1. 528+245=_____ I got 107+6...
- Math - Question 1 Write the first four terms of the sequence whose general term...
- Math PLEASE HELP PLEASE PLEASE PLEASE - Question 1 Write the first four terms ...
- algebra - 1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7 ...

More Related Questions