1.

`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`5.5A. `2`B. `7`C. `3`D. `4`

Answer» Correct Answer - 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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