Math, asked by jivanmate5263, 1 year ago

If twice twice the 11th term of an A.P. Is equal to 7 times of its 21st term, then its 25th term is equal to.

Answers

Answered by abcd1221

4

Ans: 2 ( a + 10d ) = 7 ( a + 20d)

By solving,

a = -24d.
a25 = a + 24d
a25 = -24d + 24d

a25 = 0

Previous Question

Next Question

Similar questions

Physics, 7 months ago

Action Reaction of a. Steam engine b. Motion of moon and earth cl. Magnct attracts piece of iron...

Math, 7 months ago

find the zeros of quadratic polynomial x2 - 6 ...

History, 7 months ago

Who was Abul Fazl? ( अबुल फजल कौन था? ) 1 point a) Akbar’s Courtier ( अकबर का दरबारी ) b) Mansabdar (मनसबदार) c) Revenue Minister of Akbar ( अकबर के राजस्व मंत्री ) d) A large land owner ( बड़ा जमींदार ) ...

Science, 1 year ago

is heat always released during combustoin...

English, 1 year ago

Imagine you are madhav .realising the important contribution education can make to create an ideal world,you decide to encourage your friends to volunteer to teach the underprivileged. write a notice for your school notice board inviting student to register their names for the noble cause in the space given on the next page.

English, 1 year ago

Idom and phases Head over heels A.Studyhard B.very exited C.living in luxury D.conflict...

English, 1 year ago

Who was evans? Where he was going...

Geography, 1 year ago

ox bow lakes are found in:...