Kanbay Previous Years Solved Sample Placement Papers
- A boat going upstream takes 8 hours 24 minutes to cover a certain distance, while it takes 5 hours to cover 5/7 of the same distance running downstream. Then what is the ratio of the speed of the boat to the speed of the water current?
a) 11:5
b) 11:6
c) 11:1
d) 6:5
Ans: c) 11:1 - A boat takes 128 minutes less to travel 48 km downstream than to travel the same distance upstream. If the speed of the stream is 3 km/hr, what is the speed of the boat in still water?
a) 12 km/hr
b) 15 km/hr
c) 6 km/hr
d) 9 km/hr
Ans: a) 12 km/hr - An alloy contains brass, iron, and zinc in the ratio 2:3:1, and another contains iron, zinc, and lead in the ratio 5:4:3. If equal weights of both alloys are melted together to form a third alloy, then what will be the weight of lead per kg in the new alloy?
a) 1/4
b) 41/7
c) 1/8
d) 51/9
Ans: c) 1/8 - A milkman mixes 6 liters of free tap water with 20 liters of pure milk. If the cost of pure milk is Rs. 28 per liter, what is the percentage profit of the milkman when he sells all the mixture at the cost price?
a) 30%
b) 16(1/3)%
c) 25%
d) 16.5%
Ans: a) 30% - 144 liters of the mixture contain milk and water in the ratio 5:7. How much milk needs to be added to this mixture so that the new ratio is 23:21?
a) 40 liters
b) 28 liters
c) 32 liters
d) 36 liters
Ans: c) 32 liters - A shopkeeper bought 30 kg of rice at Rs. 75 per kg and 20 kg of rice at Rs. 70 per kg. If he mixed the two brands of rice and sold the mixture at Rs. 80 per kg, find his gain.
a) Rs. 350
b) Rs. 550
c) Rs. 420
d) Rs. 210
Ans: a) Rs. 350 - The cost price of 80 notebooks is equal to the selling price of 65 notebooks. What is the gain or loss percentage?
a) 32%
b) 42%
c) 27%
d) 23%
Ans: d) 23%