In a factory, 60\% of the workers are above 30 years and of these 75\% are males and the rest are females. If there are 135 male workers above 30 year - Quantitative Aptitude MCQ UP Police Constable 2026 | ExamTest.live

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In a factory, 60% of the workers are above 30 years and of these 75% are males and the rest are females. If there are 135 male workers above 30 years, the total number of workers in the factory is:

Solution & Step-by-step Explanation

Let the total number of workers in the factory be N . Number of workers above 30 years old: 60% of N = 0.6 N Out of these, 75% are males: Male workers above 30 years = 75% of 0.6 N = 135 \frac{75}{100} \times 0.6 N = 135 0.75 \times 0.6 N = 135 0.45 N = 135 N = \frac{135}{0.45} = \frac{13500}{45} = 300

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In a factory, 60% of the workers are above 30 years and of these 75% are males and the rest are females. If there are 135 male workers above 30 years, the total number of workers in the factory is:

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