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JEE Main20199 Apr 2019Evening ShiftPhysicsMathematics in PhysicsActual

The area of a square is 5.29 c m 2 . The area of 7 such squares taking into account the significant figures is:

Options

  1. A37.03 c m 2
  2. B37.030 c m 2
  3. C37.0 c m 2
  4. D37 c m 2

Correct answer

A. 37.03 c m 2

Step-by-step solution

Given, Area of square = 5.29 c m 2 Area of 7 square = 5.29 + 5.29 + 5.29 + 5.29 + 5.29 + 5.29 + 5.29 = 37.03 c m 2 5.29 has 2 significant digits after decimal. Accordingly, the answer should also have two significant digits after decimal .

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