which forms an AP with a T0,800 diluU2. Find the 20th term from the la – InterviewSolution

1.

which forms an AP with a T0,800 diluU2. Find the 20th term from the last term of the AP: 3, 8, 13, ..., 253.

Answer»

Solution :

We have, l = Last term = 253and, d = Common difference = 8 - 3 = 5

∴ 20th term from the end = l - (20 - 1)d= l - 19d = 253 - 19 × 5 = 253 - 95 = 158

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