Home
Class 10
MATHS
The first and the last terms of an AP ar...

The first and the last terms of an AP are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?

Text Solution

Verified by Experts

The correct Answer is:
n=38; `S_(38) = 6973`
Promotional Banner

Topper's Solved these Questions

  • PROGRESSIONS

    NCERT GUJARATI|Exercise EXERCISE 6.4|4 Videos

  • PROGRESSIONS

    NCERT GUJARATI|Exercise EXERCISE 6.5|7 Videos

  • PROGRESSIONS

    NCERT GUJARATI|Exercise EXERCISE 6.2|17 Videos

  • PROBABILITY

    NCERT GUJARATI|Exercise THINK AND DISCUSS|3 Videos

  • QUADRATIC EQUATIONS

    NCERT GUJARATI|Exercise OPTIONAL EXERCISE|7 Videos

Similar Questions

Explore conceptually related problems

The 26th , 11th and the last term of an AP are 0,3 and -1/5 respectively. Find the common difference and the number of terms .

The first and the last term of an AP are 7 and 49 respectively. If the sum of all its terms is 420, find the common difference.

If first term, second term and last term of an A.P are a,b and 2a respectively then there sum is……

If the 3rd and the 9th terms of an AP are 4 and -8 respectively , which term of this AP is zero?

The 17th term of an AP exceeds its 10 th term by 7. Find the common difference.

The sum of 5th and 7th terms of an AP is 52 and the 10th term is 46 . Find the common difference of the AP.

If the sum of n terms of an A.P. is 3n + 2n^(2) , find the common difference

The sum and product of three consecutive terms of an A.P. are 24 and 312 respectively. Find these terms.

The 17th term of an AP exceeds its 10th term by 7. Find common difference .

If 3^(rd) and 10^(th) terms of an A.P. be 9 and 21 respectively. Then the sum of its first 12 terms is…….