Asked by Okoro Jennifer

The sum of the 4th and 6th terms of an AP is 42. The sum of the 3rd and the 9th term of progression is 52, find the first term and the common difference of the sum of the 1st, 10th terms of the progression
Answered by Okoro Jennifer
Please l need an answer to my question
Answered by Reiny
"The sum of the 4th and 6th terms of an AP is 42"
---> a+3d + a+5d = 42
2a + 8d = 4s
a + 4d = 21
"The sum of the 3rd and the 9th term of progression is 52"
a+2d + a+8d = 52
2a + 10d = 52
a + 5d = 26

solve these two equations by subtracting them
etc
Answered by Okoro Jennifer
Thanks a lot
I have got the answer
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