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A petrol pump dispenses fuel; the price per litre rose each year in an AP. In 2018 it was Rs 70 and in 2024 it was Rs 100, with equal yearly increases.

What was the price per litre in 2022? (Treat 2018 as the 1st term.)

Class 10nth Term of an APAlgebra — Sequences
  • ARs 90
  • BRs 85
  • CRs 95
  • DRs 80

Step-by-Step Solution

2018 = term 1 (a=70), 2024 = term 7 = 100 => 70 + 6d = 100 => d = 5. 2022 = term 5 = 70 + 4*5 = 90, so Rs 90.
Answer: A) Rs 90

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