If eighth term of an ap is 37 and fifteenth term is 15 more than the twelfth term find the ap
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a+7d=37-----------------(1)
a+14d+15=a+11d
or 3d=-15
or d=-5
putting the value of d on (1)
a+7*(-5)=37
or a-35=37
or a=37+35
or a=72
then AP is 72,67,62,57,52,47,42,37,32,27,22,17,12,7,2,-3,-8,-13,-18,-23,-28................
a+14d+15=a+11d
or 3d=-15
or d=-5
putting the value of d on (1)
a+7*(-5)=37
or a-35=37
or a=37+35
or a=72
then AP is 72,67,62,57,52,47,42,37,32,27,22,17,12,7,2,-3,-8,-13,-18,-23,-28................
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