MCQ
Convert $3\ m\ 40\ cm$ into millimeters:
  • A
    $7000\ mm$
  • $3400\ mm$
  • C
    $4300\ mm$
  • D
    $700\ mm$

Answer

Correct option: B.
$3400\ mm$

We know that
$1$ meter $=100\ cm$
$1$ centimeter $=10$ millimeter
$1$ meter $=1000\ mm$
Given That, we have to convert $3\ m\ 40\ cm$ to millimeter
$40\ cm = 10 × 40\ mm$
$= 400$ millimeter And
$3\ m = 1000 × 3\ mm$
$= 3000$ millimeter
$3\ m\ 40\ cm = 3\ m + 40\ cm$
$= 3000\ mm + 400\ mm$
$= 3400 \ mm$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free