A shopkeeper sold an article after offering two

121, 129, 139, 151, 165, 181

Three colleagues, M, N, and O, have an average age of 27. Ten years ago, their ages were in the ratio of 4:6:7. What is the average age of M and N today?

What type of high-performance and costly computer can process data for hundreds or thousands of users at the same time?

If log 2 = 0.3210 and log 3 = 0.4661, the value of log5 1024 is:

What will be come in place of (?) in the given number series.

5, 9, 17, 33, ?, 129

Find minimum of x + 9/x for x>0.

What will be the compound interest on a sum of Rs 22,000 after 3 years at the rate of 6 percent per annum? 

If tan⁻¹(x) + tan⁻¹(y) + tan⁻¹(z) = π/2, then the value of cot⁻¹(x) + cot⁻¹(y) + cot⁻¹(z) = ?

In a triangle ABC, the sides are AB = 15 cm, BC = 20 cm, and AC = 25 cm. Find the area of the triangle using Heron’s formula.