SBI PO Quantitative Aptitude Quiz: 23rd April

Dear Aspirants,

Numerical Ability or Quantitative Aptitude Section has given heebie-jeebies to the aspirants when they appear for a banking examination. As the level of every other section is only getting complex and convoluted, there is no doubt that this section, too, makes your blood run cold. The questions asked in this section are calculative and very time-consuming. But once dealt with proper strategy, speed, and accuracy, this section can get you the maximum marks in the examination. Following is the Quantitative Aptitude quiz to help you practice with the best of latest pattern questions.

Q1. An alloy of iron and nickil weight 50g. It contains 80% iron. How much iron should be added to the alloy so that percentage of iron is increased to 90%?

Q2. A chemist has 10 litre of a solution that is 10% sulphuric acid by volume. He wants to dilute the solution to 4% strength by adding water how many litre of water must be added?

Q3. An alloy contains silver and lead in the ratio 5 : 8 and another alloy contains silver and lead in the ratio 5 : 3. If equal amount of both the alloys are melted together, then the ratio of silver and lead in the resulting alloy is

Q4. Some amount out of Rs. 6000 was lent out at 10% per annum and the rest amount @ at 20% per annum and thus in 4 years the total interest from both the amounts collected was Rs. 3400. What is the amount which was lent out at 10% per annum?

Q5. A jar was full of milk. A person used to draw out 20% of the milk from the jar and replaced it with sugar solution. He has repeated the same process further 3 times and thus there was only 512 gm of milk left in the jar, the rest part of the jar was filled with the sugar solution. The initial amount of the milk in the jar was:

Q6. A 5 cm cube is cut into as many 1 cm cubes as possible. What is the ratio of the total surface area of the larger cube to that of the sum of the total surface areas of the smaller cubes?

Q7. The average age of girls in a class is 16.66 years, while the average age of boys is 18.75 years. Thus, the average age of all the 40 students of the class is 17.5 years. If the difference between the no. of boys and girls is 8, then the no. of boys in the class is? (Number of girls > Number of boys)

Q8. Four horses are tethered at 4 corners of a square field of side 70 metres so that they can just reach half of the side of field. The area left ungrazed by the horses is:

Q9. The ratio of the quantities of an acid and water in a mixture is 1 : 3. If 5 litres of Acid is further added to the mixture, the new ratio becomes 1 : 2. The quantity of new mixture in litres is

Q10. The ratio of water and wine in two different containers is 2 : 3 and 4 : 5 respectively. In what ratio we are required to mix the mixture of two containers in order to get the new mixture in which the ratio of wine and water be 7 : 5 ?

Q11. In what ratio should two qualities of coffee powder having the rates of Rs. 47 per kg and Rs. 32 per kg be mixed in order to get a mixture that would have a rate of Rs. 37 per kg ?

Directions (12-15): What will come in place of (?) in the following number series questions? 

Q12. 4, 31, 156, 499, 1228, ?

Q13. 3, 10, 20, 39, 85, ?

Q14. 6, 4, 5, 11, ?, 361

Q15. 152, 156, 140, 176, 112, ?

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