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Let f(x) be a differentiable function in `[2,7]`. If `f(2)=3` and `f'(x)le5` for all x in (2, 7), then the maximum possible value of f(x) at x = 7 is-

A

7

B

15

C

28

D

14

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2014-MULTIPLE CHOICE QUESTIONS
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