The area of a rectangular field (in m 2 ) of length 55 . 3 m and breadth 25 m after rounding off the value…

The area of a rectangular field (in m2) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is:
  1. 1382
  2. 1382.5
  3. 14×102
  4. 138×101

Solution

Length has 3 significant digits and breadth has 2 significant digits, hence the product should have least number of significant digits which is 2.

Area of rectangular field is, A=length×breadth

=55.3 m×25 m=1382.5 m2

Thus, area of rectangular field upto correct significant figure is 14×102.

Asked in: NEET 2022 (Phase 1)

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