1.

2,5/2,3,7/3,... are in A.P. OR NOT

Answer»

For any no.s to be in A.P. DIFFENCE in CONSECUTIVE no.s MUST be same
so,5/2 - 2=1/2
and 7/3 - 5/2 = -1/6 which is UNEQUAL to 1/2
so they are not in AP



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