an ap consists of 45 terms. The sum of the three middle most terms is 546 and the sum of the last three terms is 1050.
find the AP.
Answers
Answered by
9
AP is 6 , 14 , 22 , 30 ,,,,,,,,,,,,,,,,,,,,,
Step-by-step explanation:
an ap consists of 45 terms
middle three terms
22 , 23 , 24
22nd term = a + 21d
23rd term = a + 22d
24th term = a + 23d
a + 21d + a + 22d + a + 23d = 546
=> 3a + 66d = 546
=> a + 22d = 182
Last three terms
a + 44d + a + 43d + a + 42d = 1050
=> 3a + 129d = 1050
=> a + 43d = 350
=> 21d = 168
=> d = 8
a + 22*8 = 182
=> a = 6
AP
6 , 14 , 22 , 30 ,,,,,,,,,,,,,,,,,,,,,
Learn more:
If the 10th term of an A.P. is 21 and the sum of its first 10 terms is 120 ...
https://brainly.in/question/7606069
If n th term of an A.P. is 4, common difference is 2 and sum of first n ...
https://brainly.in/question/7682811
Answered by
0
baba harmane ya fhir
royal
Similar questions