Three number are in $A.P.$ such that their sum is $18$ and sum of their squares is $158$. The greatest number among them is
Three number are in $A.P.$ such that their sum is $18$ and sum of their squares is $158$. The greatest number among them is
- A
$10$
- B
$11$
- C
$12$
- D
None of these
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