How many A.P.'s with 10 temrs are there whose first term is in the set – InterviewSolution

1.	How many A.P.'s with 10 temrs are there whose first term is in the set [1,2,3] and whose common difference is in the set [1,2,3,4,5] ?
Answer» How many A.P.'s with 10 temrs are there whose first term is in the set [1,2,3] and whose common difference is in the set [1,2,3,4,5] ?

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