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Three numbers are in A.P. and their sum ...

Three numbers are in A.P. and their sum is 21, then the middle number is-

A

5

B

6

C

`6.5`

D

7

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Five numbers are in A.P. and their sum is 50, then its 3rd number will be -

    A
    2
    B
    5
    C
    10
    D
    15

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