Multiple Choice Questions on The difference between Circumference of circle A and diameter is 90 cm If Radius of Circle B is 7 cm........... for IBPS(Clerical) Exam Preparation

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Multiple Choice Questions

The difference between Circumference of circle A and diameter is 90 cm If Radius of Circle B is 7 cm...........

Quantitative Aptitude(IBPS CL) Mensuration 2D
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    The difference between Circumference of circle A and diameter is 90 cm. If Radius of Circle B is 7 cm less than A then find area of Circle B?

    616 cm2 

    Correct Answer

    308 cm2

    Incorrect Answer

     77 cm2

    Incorrect Answer

     49 cm2

    Incorrect Answer

    None of these

    Incorrect Answer
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    Explanation:

    Given, 2ΠRA - 2RA = 90

    {(22/7)-1}RA = 45

    RA = 21 cm

    RB= 21-7= 14 cm

    Area of circle B= Π (RB) 2= 22/7 x 14 x 14 = 616 cm2

    By: Munesh Kumari
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