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Subject :IMO    Class : Class 4

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Class : Class 4

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Subject :IMO    Class : Class 4

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Class : Class 4

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Class : Class 4

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 3

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Class : Class 3

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Class : Class 3

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the answer is c because 1 big ball = 230g 2 small balls=290290-230=60we have to divide 60 y 2 which is 30

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Subject :IMO    Class : Class 5

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B

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