Which term in the arithmetic progression 7, 17, 27, 37 will be 210 more than the 10th term?
Answers
Answered by
2
Answer:
the required term of ap is 31
Step-by-step explanation:
a=7 d=10
an=a10 +210
a+(n-1)d = a +9d +210
Answered by
1
Hlw !
Given :-
- A.P = 7, 17, 27, 37.......
- a = 7
- d = 10
To find :-
- which term is 210 more than its 10th term. i.e n
Solution :-
Let the term be n.
(an = a + (n-1) d )
10th term +210 = n
a + 9d +210 = a + (n-1)d
7 + 9(10) +210 = 7 + (n-1)10
90 + 210 = (n-1)10
300/10 = n-1
30+1 = n
therefore, n = 31
___________________
Hope it helps.....
Similar questions