Question
Rakhi moved a distance of 65 metres towards the north.
She then turned to the left and walked for about 35 metres, turned left again and walked 80 metres. Finally, she turned to the right at an angle of 90°. In which direction was she moving finally?Solution
Pipe P and Q can fill a tank in 20 minutes and 30 minutes individually. Another pipe R can empty the tank in 60 minutes. When all the three pipes are op...
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A tank has two inlet pipes and one outlet pipe. Pipe A can fill the tank in 4 hours, and Pipe B can fill it in 6 hours. The outlet pipe C can empty the ...
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