Asked by Mujahid
The 14th term of an A.p is 96 while the 25th term is 173 , find a sum of 3rd and 6th term
Answers
Answered by
mathhelper
a + 13d = 96
a + 24d = 173
subtract them:
11d = 77
d = 7
then in a + 13d = 96
a + 91 = 96
a = 5
term(3) = a + 2d = ...
term(6) = a + 5d = ...
now add them
a + 24d = 173
subtract them:
11d = 77
d = 7
then in a + 13d = 96
a + 91 = 96
a = 5
term(3) = a + 2d = ...
term(6) = a + 5d = ...
now add them
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