The radius of circle A is r, and the radius of circle B is 3/4r. What is the ratio of the area of circle A to the area of circle B?

A 16 to 9
B 9 to 16
C 1 to 4
D 4 to 3

Correct Answer: 16 to 9

area of circle A is = πr2area of circle B is = π(3r4)2 = 916πr2ratio of area of circle A to circle B = πr2916πr2                                                                  = πr2 ×169πr2                                                                  = 16/9 or  16 to 9 (Ans)
Bissoy MCQ
#গণিত #অনুপাত-সমানুপাত (Ratio-Proportion) #Dhaka Bank Ltd #Dhaka Bank Ltd | Probationary Officer | 05-02-2021

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