Q2.Direction of the question: Solve the following question and mark the best possible option. How many different pairs (a,b) of positive integers are there such that a≤b and a1+b1=91?
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Q2
26 Nov 2017
Q2.Direction of the question: Solve the following question and mark the best possible option. How many different pairs (a,b) of positive integers are there such that a≤b and a1+b1=91?