AB = Pole CE = Tower AB = 15 m In ∆ABE tan30° = AB/BE 1/√3 = AB/BE 1/√3 = 15/BE BE = 15√3 m AD = BE = 15√3 In ∆ACD tan60° = CD/AD ⇒ √3 = CD/(15√3) ⇒ CD = 45 CD + DE = 45 + 15 ⇒ 60 m
Pipe ‘A’ can fill a tank in 25 hours while pipe ‘B’ takes 30 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
Pipe ‘A’ takes 40 minutes to fill a tank. Pipe ‘B’ takes 50 minutes to empty the same tank. If pipe ‘B’ is opened 21...
There was the leakage in the Oil tanker. If 20 litre of oil is leaked out per day then it would have lasted for 50 days and if the leakage was 32 litre ...
Pipe E can fill a tank in 40 minutes while pipe F can fill the same tank in 50 minutes. If pipe E and F are opened simultaneously, then after how much t...
Pipe ‘A’ and pipe ‘B’, together can fill 20% of a tank in 6 hours while pipe ‘C’ takes 36 hours to empty it. ...
Tap A can fill a tank in 12 hours. Tap B can fill 12.5% part of the same tank in 2 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 5/8 par...
Tap A can fill a tank in 9 hours. Tap B can fill 37.5% part of the same tank in 3 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 2/5 part...
A cistern has two pipes one can fill it with water in 24 hours and other can empty it in 9 hours. In how many hours will the cistern be emptied if both ...
Pipes ‘A’ and ‘B’ can fill a tank in 6 hours and 9 hours, respectively. If pipe ‘C’ is opened along with pipes ‘A’ and ‘B’, then the...
Pipe 'A' and pipe 'B', alone can fill a tank in 20 minutes and 30 minutes, respectively. Both the pipes were opened together to fill the tank, but later...
