Railway Group D Mock Test

Quantitative Aptitude Quiz for SBI CLERK BANK PO

Q1. A vessel has 30 L of wine and 10 L of water mixture. 4L of mixture is taken out from vessel and 4 L of water is added. This process is repeated one more time. The ratio of quantity of wine is left and initial quantity of wine is 
(a) 80 : 92
(b) 81 : 100
(c) 45 : 47
(d) 89 : 91
(e) None of these 
Q2. There are two vessels A and B. Vessel A is containing 40L of pure milk and vessel B is containing 22L of pure water. From vessel A, 8L of milk is taken out and poured into vessel B. Then, 6L of mixture (milk and water) is taken out from vessel B and poured into vessel A. What is the ratio of the quantity of pure milk in vessel A to the quantity of pure water in vessel B?  
(a) 14 : 9
(b) 21 : 11
(c) 24 : 13
(d) 14 : 5
(e) 21 : 13
Q3. In two vessels A and B, there is mixture of milk and water. The ratio of milk and water in these vessels is 5 : 2 and 8 : 5, respectively. In what ratio these mixtures be mixed together, so that the ratio of milk and water in the new mixture becomes 9 : 4? 
(a) 7 : 2
(b) 2 : 7
(c) 3 : 5
(d) 5 : 3
(e) 7 : 9
Q4. A and B are two alloys of gold and copper prepared by mixing metals in the ratio 7 : 2 and 7 : 11, respectively. If equal quantities of the alloys are melted to from a third alloy C, the ratio of gold and copper in C will be  
(a) 5 : 7
(b) 5 : 9
(c) 7 : 5
(d) 9 : 5
(e) None of these
Q5. When one litre of water is added to a mixture of acid and water, the new mixture contains 20% acid. When one litre of acid is added to the new mixture, then the resulting mixture contains 100/3% acid. The percentage of acid in the original mixture was  
(a) 20%
(b) 22%
(c) 24%
(d) 25%

(e) None of these


 

Solutions

S2. Ans.(b)
Sol. Initial quantity of milk in vessel A = 40 L
Initial quantity of water in vessel B = 22 L
Now, 8 L milk is poured to vessel B
∴ Quantity of milk left in vessel,
A = 40 – 8 = 32L
∴ quantity of milk in vessel B = 8L
And quantity of water in vessel B = 22L
∴ (Milk : water) in vessel
B = 8 : 22 = 4 : 11
Now, 6 L of mixture (milk and water) is taken out from vessel B and poured into vessel A.

 

 

 

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