1.

The ratio of the numbers of male and female workers in a farm having 320 workers is 9 : 11. What will be the new ratio if 8 female workers leave the work?1). 91 : 812). 17 : 203). 6 : 74). 7 : 9

Answer»

According to the given information,

Number of total workers in the farm = 320

Ratio of MEN and women = 9 : 11

Number of men workers = total number of workers $(\times \;\frac{{9}}{{9 + 11}})$

Number of men workers $(= \;320\; \times \frac{{9}}{{9 + 11}}{\rm{\;}} = {\rm{\;}}144)$

Number of female workers = 320 – 144 = 176

According to the given information,

8 female workers leave the work,

the remaining number of female workers = 176 – 8 = 168

New ratio of male to female workers = 144 : 168 = 6 : 7

Hence new ratio is 6 : 7


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