General Studies · Number Analogy

Two sets of numbers are given below. In each set, certain mathematical operations on the first number result in the second number, on the second result in the third, and on the third result in the fourth. Select the option that follows the same set of operations. (Note: Operations should be performed on whole numbers without breaking down digits.)5 – 7 – 25 – 4211 – 19 – 37 – 54