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Subject :IMO    Class : Class 7

The diameter of the big circle is divided into 5 parts. These five parts are the diameters of new circles as shown. If the circumference of the big circle is 30 cm, then the sum of the circumferences of the 5 smaller circles is

Asmaller than 30 cm
B30 cm
C45 cm
D60 cm

Ans 1:

Class : Class 7

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