IBPS Government Jobs Exams Numerical Ability Time and Work

12 Men alone can complete a piece of work in 5 days, whereas 3 men and 9 women together can complete the same piece of work in 10 days. In how many days can 36 women complete the same piece of work?
A) 10 days B) 8 days C) 4 days D) 5 days

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IBPS Other Question

A man is watching from the top of a tower a boat speeding away from the tower. The boat makes an angle of depression of 45° with his eye when at a distance of 60 metres from the tower. After 5 seconds, the angle of depression becomes 30°. What is the approximate speed of the boat, assuming that it is running in still water?
A) 36 km/hr B) 32 km/hr C) 38 km/hr D) 40 km/hr E) None of these A warehouse is 30 m long and 20 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall (in m³) is:
A) 3600 B) 5600 C) 7200 D) 4800 E) 6000