The number of units manufactured by a company A was 12500 units in 2019 and 10625 units in 2020. While in company B, the production fell from 34000 units in 2019 to 30600 units in 2020. If X and Y are the percentage decrease in the number of units manufactured by company A and B respectively from 2019 to 2020, then what will be the ratio of X and Y ?

3 : 2

Percentage decrease(X) in the number of units manufactured by company A = \(\frac{12500\;-\;10625}{12500}\) x100 = \(\frac{1875}{12500}\) x 100 = 15%

Percentage decrease(Y) in the number of units manufactured by company B = \(\frac{34000\;-\;30600}{34000}\) x100 = \(\frac{3400}{34000}\) x 100 = 10%

Ratio X : Y = 15 : 10 = 3 : 2