MCQ
If $L = 2.331\,cm,\;B = 2.1\,cm$, then $L + B = $
  • A
    $4.431 \,cm$
  • B
    $4.43 \,cm$
  • $4.4 \,cm$
  • D
    $4 \,cm$

Answer

Correct option: C.
$4.4 \,cm$
c
(c) Given, $L = 2.331\;cm$

$ = 2.33$ (correct upto two decimal places)

and $B = 2.1\;cm$$ = 2.10\;cm$

$\therefore \;L + B = 2.33 + 2.10 = 4.43\;cm$.$ = 4.4\,cm$

Since minimum significant figure is $2$.

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