1.

Find the common difference of A.P. 1/3,5/3,9/3,13/3 ,_______​

Answer»

The only difference is the numerators are DIFFERENT and the denominators are same and the NEXT set is 15/3 the difference is 1,5,9,13 which is 1+4=5 and 5+2=9 and 9+4 =13 so,13+2 will be 15



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