Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let a 1 , a 2 a 3 ........ be in A.P. and h 1 , h 2 , h 3 ,...... in H.P. If a 1 = 2 = h 1 and a 30 = 25 = h 30 then
(a 7 h 24 + a 14 h 17 ) equal to :
Text Solution
Verified by ExpertsThe correct answer is:
B
If first and last term of A.P. and H.P. are same the product of x terms begining in A.P. and kth term from end in H.P. is constant and equal = first term × last term
a 7 h 24 + a 14 h 17 = ab + ab = 2ab = 2(25) (2) = 100
──────────────────────────────────────────────────────────────────────────────────────────
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Find the 4 th term of an H.P. whose 7 th term is and 13 th term is .
Insert three harmonic means between 1 and 7.
If = = and p, q, r are in A.P. then prove that x, y, z are in H.P.
If a 2 , b 2 , c 2 are in A.P. show that b + c , c + a, a + b are in H.P.
If b is the harmonic mean between a and c, then prove that + = .
Sum the following series
(i)1 + + + + ........ to n terms.
(ii) 1 + + + + + ..... to infinit…