Question
Which of the following diseases cannot be cured by
antibiotics?Solution
Measles or measles is a viral infection caused by the rubella virus. It is one of the most infectious diseases in the world. If one person gets measles, there is a 90 percent chance that people around that person will also become infected if they are not immune to measles.
A boat can row to a place of 60km away and come back in
The ratio of the speed of boats ‘A’ and ‘B’ in still water is 8:9, respectively. The speed of the current is 25% of the speed of boat ‘A’ in...
A man can swim at the rate of 5 km/hr in still water. If the speed of the water is 2 km/hr, then the time taken by him to swim 18 km upstream is
A boat takes 2 hours to cover 60 km downstream. If the speed of the stream is 3 km/h, then how far will it go upstream in 6 hours?
Motor boat covers a certain distance downstream in a river in 20 hours. It covers the same distance upstream in 30 hours. If the speed of the water is 1...
A takes 3 hours more while swimming upstream than downstream. His speed in still water is 12 km/hr. The speed of stream is 4 km/hr. What is the distance?
The speed of the boat and the speed of the stream is 15km/hr and 3km/hr individually. The boat travel for a period of 3 hours upstream and 4 hours downs...
The ratio of the speed of the boat in upstream to that of in downstream is 3:4, respectively. If the speed of the current is 5 km/h, then find the speed...
The speed of the stream is 15 km/h. Boat ‘A’ covers 100 km distance against the stream in 4 hours and boat ‘B’ covers 90 km distance against the...
A boat covers some distance downstream in 1 hour. It covers 3/2 hours. If the velocity of the stream is 3 kilometers per hour, then what will be the vel...
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