if there is a reduction in the number of workers in a factory in the ratio 7 : 3 and an increment in the wages in the ratio 11 : 15, then the ratio of total wages of the workers decreases by what ratio?

96 : 60 135 : 33 77 : 45     89 : 45

77 : 45

Change in number of workers      7  :  3 Change in individual wages         11 : 15    Ratio of total wages =          7 x 11  :  3 x 15  =       77 : 45