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a1,a2, a3, ,an are in A.P. and a1+a3+a5...

`a_1,a_2, a_3, ,a_n` are in A.P. and `a_1+a_3+a_5+a_7+a_9=20` then `a_5` is `2` 2. `7` 3. `3` 4. `4` 5. 5

A

`2`

B

`7`

C

`3`

D

`4`

Text Solution

Verified by Experts

The correct Answer is:
D
`a_(1),a_(2),a_(3),………..,a_(n)` are …………
`a_(1)+a_(3)+a_(5)+a_(7)+a_(9) = 20`
`implies 5a_(1)+20d= 20`
`a_(1)+4d = 4`
`a_(5)=4`
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