IBPS Government Jobs Exams Numerical Ability Boats and Streams

Shyam can row a boat with 14⅔ km/hr in still water and it take 20% more time to cover same distance in upstream than downstream. Find speed of current is what percent of speed of boat in still water? (1) 3.33% (2) 11.11% (3) 14.28% (4) 7.14% (5) 9.09%

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IBPS Other Question

27 kg of rice A which costs 184 Rs/kg was mixed with a certain amount of another type of rice B, which costs was 248 Rs/kg. Then the mixture was sold at 252 Rs/kg and at 16⅔% profit was earned. What was the quantity of type B rice to be mixed in the mixture? (1)25 kg (2)26 kg (3)27 kg (4)28 kg (5)54 kg There are two alloys made up of copper and aluminum. In the first alloy copper is half as much as aluminum and in the second alloy, copper is thrice as much as aluminum. How many times the second alloy must be mixed with the first alloy to get the new alloy in which copper is twice as much as aluminum? (1) 2 (2) 3 (3) 4 (4) 5 (5) None of these