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Insert 20 AM between 2 and 86.Then find first mean.

Question

Insert $20$ AM between $2$ and $86$ .Then find first mean.

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Scarlett Discussed

Insert

20

AM between

2

and

86

.Then find first mean.

7 mins ago

Discuss this question LIVE

7 mins ago

Text solutionVerified

Here

2

is the first term and

86

is the

2 2^{n d}

term of AP
So,

86 = 2 + (21) d

21 d = 84

\Rightarrow d = 4

So the series is

2, 6, 10, 14, ......, 82, 86

∴

required means are

6, 10, 14, ....., 82

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Question Text	Insert $20$ AM between $2$ and $86$ .Then find first mean.
Answer Type	Text solution:1
Upvotes	150