Ncert Exercises & Solutions

38. A physical quantity X is related to four measurable quantities a, b, c, and d as follows $X = a^{2} b^{3} c^{5 / 2} d^{- 2}$ . The percentage error in the measurement of a, b, c, and d are 1%, 2%, 3%, and 4%, respectively. What is the percentage error in quantity X? If the value of X calculated on the basis of the above relation is 2.763, to what value should you round off the result.