Advertisements
Advertisements
प्रश्न
Find the 8th term from the end of the AP 7, 10, 13, ……, 184.
Advertisements
उत्तर
Here, a = 7 and d = (10-7) = 3,l = 184 and n = 8th form the end.
Now, nth term from the end = [ l - (n-1) d]
8th term from the end = [184-(8-1) x3]
=[ 184-(7×3)]=(184-21)=163
Hence, the 8th term from the end is 163.
APPEARS IN
संबंधित प्रश्न
In an AP given an = 4, d = 2, Sn = −14, find n and a.
Find the sum to n term of the A.P. 5, 2, −1, −4, −7, ...,
Find the sum of all integers between 84 and 719, which are multiples of 5.
Which term of AP 72,68,64,60,… is 0?
The angles of quadrilateral are in whose AP common difference is 10° . Find the angles.
The sum of the first n terms in an AP is `( (3"n"^2)/2 +(5"n")/2)`. Find the nth term and the 25th term.
Write an A.P. whose first term is a and common difference is d in the following.
a = –3, d = 0
Find the first term and common difference for the A.P.
127, 135, 143, 151,...
The first and the last terms of an A.P. are 8 and 350 respectively. If its common difference is 9, how many terms are there and what is their sum?
Simplify `sqrt(50)`
Find the sum of the first 15 terms of each of the following sequences having nth term as xn = 6 − n .
Find the sum of all 2 - digit natural numbers divisible by 4.
The sum of the first n terms of an A.P. is 4n2 + 2n. Find the nth term of this A.P.
If the sums of n terms of two arithmetic progressions are in the ratio \[\frac{3n + 5}{5n - 7}\] , then their nth terms are in the ratio
Suppose three parts of 207 are (a − d), a , (a + d) such that , (a + d) >a > (a − d).
A sum of Rs. 700 is to be paid to give seven cash prizes to the students of a school for their overall academic performance. If the cost of each prize is Rs. 20 less than its preceding prize; find the value of each of the prizes.
Find the sum of the first 10 multiples of 6.
In a ‘Mahila Bachat Gat’, Sharvari invested ₹ 2 on first day, ₹ 4 on second day and ₹ 6 on third day. If she saves like this, then what would be her total savings in the month of February 2010?
If the first term of an AP is –5 and the common difference is 2, then the sum of the first 6 terms is ______.
k + 2, 2k + 7 and 4k + 12 are the first three terms of an A.P. The first term of this A.P. is ______.
