Pipe
A alone can fill a tank in 8 hours. Pipe B alone can fill it in 6 hours. If
both the pipes are opened and after 2 hours pipe A is closed, then the other pipe will fill the tank?
A sells an article to B at a profit of 20% and B sell it to C at a profit of 25%. If C pays rs. 1200, then the cost price of the article originally is? a. 700 b. 600 c. 1000 d. 800
Two numbers are in the ratio of 3:5. If 9 be subtracted from each, then they are in the ratio of 12:23. Find the number? a. 15:28 b. 36:115 c. 33:55 d. 60:69
no other trick for pipe and tank chapter :(
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