This question belongs to class 10 Math jkbose from chapter 5, exercise 5.1 and Question 1 and part third
Question 1. In which of the following situations does the list of numbers involved make an arithmetic progression and why?
Solution: Given: Rs 150 for the first meter.
Rs 50 for each subsequent meter.
Now,
Cost of well for the first metre = 150 (A1)
Cost of well for the second metre = 150 + 50= 200 (A2)
Cost of well for the third metre = 150 + 50 + 50 = 250 (A3)
To check
Difference = A2 - A1
= 200 - 150
= 50
Again
Difference= A3 - A2
= 250 - 200
= 50
Hence, it forms an AP (Arithmetic Progression) because the difference is same.
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