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Determine the 10th term from the end of the A.P. 4, 9, 14, …….., 254 - Mathematics

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Sum

Determine the 10th term from the end of the A.P. 4, 9, 14, …….., 254

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Solution

We have,

l = Last term = 254 and,

d = Common difference = 5,

10th term from the end = l – (10 – 1) d

= l – 9d = 254 – 9 × 5 = 209

Concept: Arithmetic Progression
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