Question

Is the following are arithmetic progression?

1. 2, 5/2, 3, 7/2 ,.....
2. 0.2, 0.22, 0.222, ......

• A. ii only correct
• B. All are correct
• C. None of these
• D. i only correct

Answer 1

Answer:

D. i only correct

2, 5/2, 3, 7/2 ,..... first term = 2 d1 = 5/2 - 2 = 1/2 d2 = 3 - 5/2 = 1/2 d1 = d2 So 2, 5/2, 3, 7/2 ,..... is an AP 0.2, 0.22, 0.222, ...... d1 = 0.22 - 0.2 = 0.02 d2 = 0.222 - 0.22 = 0.002 d1 not equal to d2 So 0.2, 0.22, 0.222, ...... not in AP