Home
Class 10
MATHS
Find the number of terms in the followin...

Find the number of terms in the following A.P. :
`18, 15(1)/(2), 13 .. -47`.

Text Solution

AI Generated Solution

To find the number of terms in the arithmetic progression (A.P.) given by the sequence \( 18, 15 \frac{1}{2}, 13, \ldots, -47 \), we can follow these steps: ### Step 1: Identify the first term and the last term The first term \( a \) of the A.P. is: \[ a = 18 \] The last term \( a_n \) of the A.P. is: ...
Promotional Banner

Topper's Solved these Questions

  • ARITHMETIC PROGRESSION

    NAGEEN PRAKASHAN ENGLISH|Exercise Problem From NCERT/exemplar|20 Videos

  • ARITHMETIC PROGRESSION

    NAGEEN PRAKASHAN ENGLISH|Exercise Exercise 5a|5 Videos

  • AREA RELATED TO CIRCLES

    NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise Long Answer Question|5 Videos

  • CIRCLES

    NAGEEN PRAKASHAN ENGLISH|Exercise Long Answer Questions|2 Videos

Similar Questions

Explore conceptually related problems

Find the number of terms in each of the following APs : (i) 7, 13, 19, . . . , 205 (ii) 18 ,\ 15 1/2,\ 13 ,\ dot\ dot\ dot\ ,\ - 47

Find the number of terms of the AP 18, 31/2, 13, ....., -99/2 and find the sum of all its terms.

(i) Find the number of terms in the A.P. 8, 12, 16, ........124 (ii) Find the number of terms in the A.P. 75, 70, 65, .....15

Find the sum of the following A.P. 's : (i) 2, 7,12, ..... to 10 terms. (ii) (1)/(15),(1)/(12),(1)/(10),....... to 11 terms.

For the A.P. 10, 15,20,…..195, find: (i) the number of terms in the above A.P. (ii) the sum of all its terms.

Find the number of terms of the A.P. -12 ,\ -9,\ -6,\ dot,\ 12 . If 1 is added to each term of this A.P., then find the sum of all terms of the A.P. thus obtained.

Find the 12th term from the end in A.P. 13,18,23,…….158.

Find the sum of the 4th term and 9th term of the A.P.. 3,8,13,18,.... .