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December 18, 2014

December 18, 2014

Posted by **simranpreet** on Monday, December 3, 2012 at 6:23am.

please help this questions .please help.

- maths -
**Reiny**, Monday, December 3, 2012 at 9:25am8th 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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