Find the number of terms of the AP 18, 3...

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

Text Solution

AI Generated Solution

Topper's Solved these Questions

SAMPLE PAPER 2019
X BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SECTION-C|5 Videos

Similar Questions

Explore conceptually related problems

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

Find: nth term of the A.P. 13,8,3,-2,…

Find the sum of the first 22 terms of the AP : 8,3,-2, . . . .

Find the sum to n terms of the series 5,7,13,31,85+…….

Find the sum to 20 terms of 2 + 6 + 18 + .....

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 sum of the first 22 terms of the A.P. : 8, 3, -2,………….

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

X BOARD PREVIOUS YEAR PAPER ENGLISH-X Boards-All Questions

A card is drawn at random from a well-shuffled pack of 52 cards. Fi...
Text Solution
|
For what value of k, are the roots of the quadratic equation kx (x-2) ...
Text Solution
|
Find the number of terms of the AP 18, 31/2, 13, ....., -99/2 and find...
Text Solution
|
Use Euclid's division lemma to show that the square of any positive ...
Text Solution
|
The horizontal distance between two poles is 15 m. The angle of depres...
Text Solution
|
Show that the points (7, 10), (-2, 5), and (3, -4) are the vertices of...
Text Solution
|
Find the ratio in which the y-axis divides the line segment joining th...
Text Solution
|
In the given figure, AB and CD are two diameters of circles ( with cen...
Text Solution
|
A vessel is in the form of a hollow hemisphere mounted by a hollow ...
Text Solution
|
Represent the following pair of equations graphically and write the co...
Text Solution
|
For what value of n, the n^(t h) terms of the following two A.Ps are t...
Text Solution
|
A wooden article was made by scooping out a hemisphere from each en...
Text Solution
|
In a circle of radius 21cm, an arc subtends an angle of 60^0 at the ce...
Text Solution
|
Solve for: 1/(2a+b+2x)=1/(2a)+1/b+1/(2x)
Text Solution
|
Sum of the areas of two squares is 400 cm. If the difference of their ...
Text Solution
|
If the sum of first 7 terms of an AP is 49 and that of 17 terms is ...
Text Solution
|
Prove that the tangent at any point of circle is perpendicular to the ...
Text Solution
|
l and m are two parallel tangents to a circle with centre O, touching...
Text Solution
|
The angle of elevation of the top of a building from the foot of the t...
Text Solution
|
A group consists of 12 persons, of which 3 are extremely patient, othe...
Text Solution
|