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  9. Q18

BPSC (Bihar PCS) 2019 · Question 18 of 148

If the radii of circles A and B are in the ratio 1.5 : 1, then the areas of the circles A and B will be in the ratio

Mental Ability

  1. A1.5 : 1
  2. B2 : 1
  3. C2.25 : 1Correct
  4. D2.5 : 1
  5. ENone of the above/More than one of the above

Answer: C. 2.25 : 1

Explanation

Area ratio = square of radius ratio = (1.5)^2 : 1 = 2.25 : 1, i.e. 9:4; per key option B.

Source: Jagranjosh

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