MCQEasy1 mark
Select the correct option for each of the following questions.
If 70, 75, 80, 85 are the first four terms of an Arithmetic Progression, then the 10th term is
Topic: Arithmetic progression
Previous-year question practice database
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Answer
Exam answer
(c) For the A.P. 70, 75, 80, 85, …, a = 70 and d = 5. T₁₀ = a + 9d = 70 + 45 = 115.
Explanation
Use Tₙ = a + (n−1)d or the appropriate Arithmetic Progression formula with the given terms.
In words
For the A.P. 70, 75, 80, 85, …, a = 70 and d = 5. T₁₀ = a + 9d = 70 + 45 = 115.