Two APs have the same common difference. The difference between their – InterviewSolution

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1.	Two APs have the same common difference. The difference between their `100^(t h)`terms is 100, what is the difference between their `1000^(t h)`terms?
Answer» `S_1:a_1,a_2.....d` `S_2:b_1,b_2.....l` `a_100-b_100=100` `a_100=a+(100-1)d` `=a+99d` `b_100=b+(100-1)l` `=b+99l` `a_100-b_100=100` `a-b=100` =`a_1000-b_1000` =`a+999d-b-999l` =`a-b`=100

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