RRB RPF RPSF SI and CONS Model Papers 9 with solutions

Question : 49 of 120

Marks: +1, -0

The area of a circle of a radius 5 is numerically what percent of its circumference?

Solution:

(4) We know that Circumference =

2\πr

=2×{22}/{7} ×5= {220}/{7}

Area

=\π r^{2}= {22}/{7}×25= {550}/{7}

⇒ Required answer

= {550}/{7} ×{7}/{220} × 100=250 \%

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