A Single A.M Between A And B Is - Testpoint

Testpoint Whatsapp group

Testpoint Whatsapp group

A single A.M between a and b is

(a+b)/2
(a-b)/2
2ab/(a+b)
None of these

Explanation

Let, a and b two given numbers.
Let,
$A_{1}, A_{2}, A_{3} . . . . . . . . . . . . . A_{n}$ be Arithmetic means between a and b.
$a, A_{1}, A_{2}, A_{3} . . . . . . . . . . . . . A_{n}, b$ are in A.P.
$a + A_{1} + A_{2} + A_{3} + . . . . . . A_{n} + b = (\frac{n + 2}{2}) (a + b)$ (first term is =a, last term=b, number of term=n+2)

$A_{1}, A_{2}, A_{3} . . . . . . . . . . . . . A_{n} = \frac{( n + 2 ) ( a + b )}{2} - (a + b)$
$= (a + b) [\frac{n + 2}{2} - 1]$
$= (a + b) [\frac{n + 2 - 2}{2}]$
$= n (\frac{a + b}{2})$
$SH14-8-2023$

Related MCQs

Choose the correct sentence: 1. A) Gold is more precious in all metals. B) Gold is most precious in all metals. C) Gold is the most precious of all metals.D) Gold is more precious than all metals.

Gold is more precious in all metals.
Gold is most precious in all metals.
Gold is the most precious of all metals
Gold is more precious than all metals.

اس سوال کو وضاحت کے ساتھ پڑھیں

Correct the sentence: Neither the supervisor nor the clerks was present in the GHQ office.

Neither the supervisor nor the clerks were present in the GHQ office.
Neither the supervisor nor the clerks was present in the GHQ office.
Neither the supervisor or the clerks were present in the GHQ office.
Neither supervisor nor clerks is present in the GHQ office.

اس سوال کو وضاحت کے ساتھ پڑھیں

Correct the Sentences:God made earth and sky.

God make the Earth and sky.
God has made earth and sky.
God created the Earth and the sky.
God creating the Earth and sky.

اس سوال کو وضاحت کے ساتھ پڑھیں

Correct the Sentences:Ten miles are a long distance.

Ten miles were a long distance.
Ten miles have a long distance.
Ten miles is a long distance.
Ten miles are long distances.

اس سوال کو وضاحت کے ساتھ پڑھیں

Correct the Sentences:Either Ashar or Musharif kept my book

Either Ashar or Musharif have kept my book.
Either Ashar or Musharif keep my book.
Either Ashar or Musharif has kept my book.
Either Ashar or Musharif keeping my book.

اس سوال کو وضاحت کے ساتھ پڑھیں

Test Point Whatsapp Channel

All Rights Reserved © TestPointpk.com