Percentages, Ratio & Commercial Arithmetic
Basic Numeracy & Data Interpretation · PYQ 2026
Suppose x, y and z are variables taking positive real numbers as their possible values. It is given that y is directly proportional to x^{2} and x is inversely proportional to z. For z = \frac{7}{25}, the values of x and y are 5 and 50, respectively. If y = 98, what is z equal to?