CBSE Class 10 Answered
x maths
Asked by | 31 Jul, 2008, 06:44: PM
Expert Answer
4th term = a + (4-1)d = a+3d
8th term = a+(8-1)d = a+7d
a+3d+a+7d = 24
2a + 10d =24
a + 5d =12 ......................(1)
6th term = a+5d
10th term = a+9d
a+5d + a + 9d = 44
2a +14d =44
a + 7d = 22.................(2)
subtract (2) from (1)
we get d = 5
and a = -13
1st term = -13 +(1-1)5 = -13
2nd term = -13 + (2-1)5 = -8
3rd term = -13+ (3-1)5 = -3
Answered by | 31 Jul, 2008, 08:04: PM
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