Question
In hospital D, 40% of the male doctors and 25% of the
female doctors are above the age of 50. Find the total number of doctors above the age of 50 in hospital D. Read the following information carefully and answer the questions:   In hospital ‘A’, total number of doctors is 200, out of this 75% are male doctors and rest is female doctors. In hospital ‘B’ total number of doctors are half of the doctors of hospital ‘A’. In hospital ‘B’, 30% is male doctors. Total number of doctors in hospital ‘C’ is 70 less than the number of male doctors in hospital ‘A’. In hospital ‘C’, female doctors are equal to the male doctors of hospital ‘B’. In hospital ‘D’, total female doctors are 120, which 20% of total doctors.Solution
Find total doctors in Hospital D: Female doctors are 20% of total doctors. Total doctors = 120/0.2 =600. Find male doctors in Hospital D: Male doctors = 600−120=480. Doctors above 50: 40% of male doctors = 0.4×480=192. 25% of female doctors = 0.25×120=30. Total doctors above 50: 192+30=222. So, 222 doctors are above the age of 50 in Hospital D.
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