Q 1. Two pipes A
and B can fill a tank in 6 hours and 8 hours respectively. If both the pipes
are opened together, then after how many hours should B be closed so that the
tank is full in 4 hours?
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
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