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Sahay Sir > Question Answers > NCERT Class 10 > Maths > Chapter 5 - Arithmetic Progressions > In which of the following situation does the list of number involved make an arithmetic progression and why ? (ii) The amount of air present in a cylinder when a vacuum pump removes 1/4 of the air remaining in the cylinder at a time.

In which of the following situation does the list of number involved make an arithmetic progression and why ? (ii) The amount of air present in a cylinder when a vacuum pump removes 1/4 of the air remaining in the cylinder at a time.

Find the discriminant of the equation 3x^2 – 2x + 1/3 = 0 and hence find the nature of its roots. Find them if they are real.