In a factory, 60% of the workers are above 30 yr and of these 75 % are males and the rest are females. If there are 1350 male workers above 30 yr, the total number of workers in the factory is
3000Explanation :Let the total number of workers be x.
∴ x `xx60/100xx75/100=1350`
⇒ x `=(1350xx100xx100)/(60xx75)=3000`