Posted by simranpreet on Monday, December 3, 2012 at 6:23am.
8th term is 37 ----> a+7d = 37
12th term is 57 ---> a + 11d = 57
subtract them:
4d = 20
d = 5
into a+7d=37
a+35=37
a = 2
A.P. is 2 7 12 17 ....
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