The given number is which term of the arithmetic sequence
Problem 1 :
Which term of the AP : 3, 8, 13, 18, …is 78 ?
Problem 2 :
Which term of the AP : 3,15,27, 39, … will be 120 more than its 21^{st} term?
Problem 3 :
The 17^{th} term of an A.P. exceeds its 10^{th} term by 7, Find the common difference.
Problem 4 :
Find whether - 150 is a term of the AP 17, 12, 7, 2, … ?
Problem 5 :
170 is the n^{th} term of -4, 2, 8, .............
Problem 6 :
97 is the n^{th} term of -3, 1, 5, ......
1) 16^{th }term of
the AP is 78.
2) Therefore, the 31^{st}
term of the given AP is more than the 21^{st} term.
3) So, the common
difference is 1.
4) So, -150 is not a term of the given AP.
5) So, 30^{th} term of the sequence is 170.
6) n = 26
Sep 22, 23 08:41 AM
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