devarshi-dt-logo

Question:

The area of a square is 5.29cm^2. The area of 7 such squares taking into account the significant figures is?

37.030cm2

37.0cm2

37.03cm2

37cm2

Solution:

Correct option is C.37.03cm2Total Area=A1+A2+=A+A+...times=7×A=7×5.29=37.03m2Addition of7terms all having2terms beyond decimal, so final answer must have2terms beyond decimal (as per rules of significant digits)