The 26th,11th and the last term of an ap are 0,3,-1/5 respectively.find the common difference and the number of term.
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a+25d = 0
a+ 10d= 3
then d= -1/5
a=5
-1/5 = 5 + (n-1)(-1/5)
n= 27
a+ 10d= 3
then d= -1/5
a=5
-1/5 = 5 + (n-1)(-1/5)
n= 27
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