Home
Class 10
MATHS
The sum of first 'n' terms of an arithme...

The sum of first 'n' terms of an arithmetic progression is 210 and sum of its first (n-1) terms is 171. If the first term 3, then write the arithmetic progression.

Text Solution

Verified by Experts

The correct Answer is:
`:.` The Arithmatic progression is 3, 7, 10, 13, ......39
Promotional Banner

Topper's Solved these Questions

  • DEPARTMENTAL MODEL QUESTION PAPER 2

    CPC CAMBRIDGE PUBLICATION|Exercise V. Answer the following questions:|4 Videos

  • DEPARTMENTAL MODEL QUESTION PAPER 2

    CPC CAMBRIDGE PUBLICATION|Exercise II. Answer the following questions:|15 Videos

  • CPC MODEL QUESTION PAPER 5

    CPC CAMBRIDGE PUBLICATION|Exercise VI. Answer the following :|1 Videos

  • MODEL QUESTION PAPER -04

    CPC CAMBRIDGE PUBLICATION|Exercise QUESTIONS|36 Videos

Similar Questions

Explore conceptually related problems

The sum of first n terms of an arithmetic progression is 210 and sum of its first ( n-1) is 171 . If the first 3 then write the arithmetic progression.

The sum o the fourth and eighth terms of arithmetic progression is 24 and the sum of the sixth and tenth terms is 44. Find the first three terms of the Arithmetic progression:

In an arithmetic progression of 50 terms, the sum of first ten terms is 210 and the sum of last fifteen terms is 2565. Find the arithmetic progression.

In an arithmetic progression of 50 terms, the sum of first ten terms is 210 and the sum of last fifteen terms is 2565. Find the arithmetic progression.

If the nth term of an Arithmetic progression is 4n^(2)-1 , then the 8^(th) term is.

The sum of the first 8 terms of an A.P. is 100 and the sum of its first 19 terms is 551. Find the first term and the common difference of the AP.

If the sum of first 8 terms of an Arithmetic progression is 136 and that of first 15 terms is 465, then find the sum of first 25 terms. OR Ths sum of the 5th and 9th terms of an A.P. is 40 and the sum of the 8th and 14th term is 64. Find the sum of the first 20 terms.

Write the formula to find the sum of first n terms of an Arithmetic progression, whose first term is a and the last term is a_n .

Write the formula to find the sum of first n terms of an Arithmetic progression, whose first term is a and the last term is a_n .