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Recent questions tagged arithmetic progression
+3
votes
1
answer
If Sn, denotes, the sum of the first n terms of an A.P. prove that S12 = 3(S8 - S4).
asked
Apr 6, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
geometric progression
cbse
+2
votes
1
answer
4^th term of an A.P is equal to 3 times its first term and 7^th term exceeds twice the 3^rd time by I. Find the first term and the common difference.
asked
Apr 6, 2019
in
Class 10
by
kratos
arithmetic progression
ncert
class-10
airthmetic progressions
icse
+1
vote
1
answer
If the sum of three numbers in A.P.be 24 and their product is 440. Find the numbers.
asked
Apr 6, 2019
in
Class 11
by
kratos
arithmetic progressions
class-11
arithmetic progression
class-10
sequences and series
+2
votes
1
answer
Find the value of x for which (8x + 4), (6x – 2) and (2x + 7) are in A.P.
asked
Apr 5, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
+3
votes
1
answer
The maturity value of a R.D. account is Rs. 16,176. If the monthly instalment is Rs. 400 and the rate of interest is 8%;
asked
Apr 5, 2019
in
Class 10
by
kratos
class-10
banking
icse
arithmetic progression
+1
vote
1
answer
If the ratio of the 11th term of an A.P. to its 18th term is 2 : 3, find the ratio of the sum of the first five term of the sum of its first 10 terms.
asked
Apr 5, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
cbse
+2
votes
1
answer
Which term of the AP 21, 42, 63, 84, … is 210? (a) 9th (b) 10th (c) 11th (d) 12th
asked
Apr 4, 2019
in
Class 10
by
kratos
ncert
class-10
arithmetic progression
airthmetic progressions
+1
vote
1
answer
A sum of Rs. 700 is to be used to give seven cash prizes to students of a school for their overall academic performance
asked
Apr 4, 2019
in
Class 10
by
kratos
csat
arithmetic progression
circles
class-10
arithmetic
+2
votes
1
answer
How many terms of the arithmetic series 24 + 21 + 18 + 15 +g, be taken continuously so that their sum is -351.
asked
Apr 4, 2019
in
Class 11
by
kratos
cbse
arithmetic progression
class-11
class-10
icse
progressions
+1
vote
1
answer
Let Sn = 1/1^3 + (1+2/1^3+2^3)+......+(1+2+....+n/1^3+2^3+.....+
asked
Apr 3, 2019
in
JEE
by
kratos
jee main 2020
arithmetic progression
jee
class-10
jee mains
sequences and series
+1
vote
1
answer
How many terms of the AP : 24, 21, 18, . . . must be taken so that their sum is 78?
asked
Apr 3, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
icse
cbse
+1
vote
0
answers
Find the sum of first 15 terms of sequences having nth term as: an = 3 + 4n
asked
Apr 2, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
+3
votes
1
answer
If the sum of n terms of an A.P. is 3n 2 − 5n, then which term of the A.P. is 130?
asked
Apr 2, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
+3
votes
1
answer
If n>2, then show that n^5-5n^3+4n is divisible by 120.
asked
Apr 2, 2019
in
Mathematics
by
kratos
class-10
arithmetic progression
ncert class 10 maths
cbse
+3
votes
1
answer
Let a, b and c be the 7^th, 11^th and 13th terms respectively of a non-constant A.P.
asked
Apr 2, 2019
in
JEE
by
kratos
jee mains 2019
class-10
arithmetic progression
cbse
+2
votes
1
answer
First term of a G.P is x^2 . If 10^th term of the sequence is x^20 then find 2^nd term.
asked
Apr 2, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
geometric progression
+3
votes
1
answer
If (a^n + b^n)/(a^n-1 + b^n-1) is the A.M. between a and b, then find the value of n.
asked
Apr 1, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
+2
votes
1
answer
If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms.
asked
Mar 31, 2019
in
Mathematics
by
kratos
cbse
arithmetic progression
ncert class 10 maths
class-10
icse
+3
votes
1
answer
Find the 9th term from the end (towards the first term) of the AP 5,9, 13, ..., 185.
asked
Mar 31, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
+3
votes
0
answers
The first and the last terms of an A.P. are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?
asked
Mar 31, 2019
in
Class 10
by
kratos
class-10
arithmetic progression
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