Subject :IMO Class : Class 1
Subject :IMO Class : Class 2
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Subject :IMO Class : Class 3
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Subject :IMO Class : Class 8
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Subject :IMO Class : Class 3
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Subject :IMO Class : Class 3
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Subject :IMO Class : Class 4
Ans 3:
Class : Class 8
The correct answer is A because R is 13, P is 7, Q is 1, so R-PxQ is 13-7x1=6
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Subject :IMO Class : Class 3
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Subject :IMO Class : Class 1
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Subject :IMO Class : Class 5