JEE Main · 2019 · 09 Apr 2019 · Shift 2 · Units & Measurement

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The area of a square is The area of 7 such squares taking into account the significant figures is:
  1. (A)
  2. (B)
  3. (C)✓ Correct
  4. (D)

Answer: (C)

Solution

Seven identical squares can be read as adding the area to itself seven times, and in addition the result is limited by the least number of decimal places, not by the count of significant figures. Since is given to two decimal places, the total is reported to two decimal places as .

JEE Main · 2019 · 09 Apr 2019 · Shift 2 · Single correct option

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