Find the 10 th term from end for A.P.,10,15,20,25,30,....., 1000.
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Answered by
2
Answer: 80
Solution: A.P. = 10, 15, 20, 25, 30,..., 1000.
a = 10
d = 15-10 = 5
n = 15
n th element = a + (n-1) d
15th term = 10 + (15 -1) 5
= 10 + (14)( 5)
= 10 +70
= 80
Answered by
2
Answer:
Given
AP- 10,15,20, 25, 30.........1000
Last term of AP is 1000
Since it is been asked to find the 10th term from end; a=1000
d= 5 , n=10
an= a+(n-1)d
an = 1000+ (10-1)(5)
an= 1000+45
an= 1045
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