Quantitative Aptitude Quiz For NIACL AO Prelims: 11th January 2019

Dear Aspirants,

Directions (1-2): In the following questions, two quantities I and II are given. You have to find these quantities to give answer 


Q1. Quantity I. Capacity of the water tank. There is a hole in the water tank which can empty it in 8 hours. A pipe is opened which fills 6 litre water per minute in tank and now tank is emptied in 12 hours.
Quantity II. Simple interest of a sum of money at the same rate of interest for 2 years. Compound interest of the same sum of money for 2 years at 4 per cent per annum is Rs. 2,448.

Solution:

Q2. Quantity I. Present average age of Abhishek and Rohit. The ratio of age of Abhishek and Rohit 4 year before was 4: 5 and Ratio of their ages 2 years later will be 5: 6. 
Quantity II. Initial quantity of mixture. A vessel contains mixture of milk and water in ratio 3: 1. if 20 liters of mixture is taken out and 15 liters of milk is added then ratio of milk and water becomes 4: 1.

Solution:

Q3. Three vessels contain equal mixtures of acid and water in the ratio 6 : 1, 5 : 2 and 3 : 1 respectively. If all the solutions are mixed together, the ratio of acid to water in the final mixture will be

Solution:

Q4. A manufacturer has 200 litres of Acid solution which has 15% acid content. How many litres of solution with 30% Acid content may be added so that Acid content in the resulting mixture will be more than 20% but less than 25%

Solution:

Q5. In a rectangular plot of 24m × 16m two roads of 1.5m wide each as shown in figure were made. If cost of making road is Rs. 310 per m² then find the cost of making whole road.

Directions (6-10): Study the information carefully and answer the questions. 


In a college, 150 students of MBA are enrolled. The ratio of boys to girls is 7:8. There are three disciplines, namely Marketing, HR and Finance, in the college. In Marketing discipline there are 50% girls of their total number and the boys are 40% of their total number. In HR discipline, girls are 30% of their total number while boys are also 30% of their number.
7 boys and 9 girls are enrolled in HR and Marketing both. 6 boys and 7 girls are enrolled in HR and finance together. 5 boys and 8 girls are enrolled in Marketing and Finance both. 2 boys and 3 girls are enrolled in all the three disciplines.


Q6. What percentage of students are enrolled in all the three disciplines?

Solution:

Q7. What is the ratio of boys to girls only in Marketing disciplines?

Solution:

Q8. The ratio of number of boys in Marketing and Finance both to that of girls only in Finance is?

Solution:

Q9. By what per cent is the number of boys in Marketing discipline is more than the number of girls in HR discipline?

Solution:

Q10. The ratio of boys to girls enrolled only in HR discipline is

Solution:

Directions (11-15): What value should come in place of question mark (?) in the following equations? 


Q11. 28% of 85 + 13.2 = ?

Q12. (7/5) of 58 + (3/8) of 139.2 = ?

Q13. ∛17576 + ∛4096 = ?

Q14. 84368 + 65466 - 72009 - 13964 = ?

Q15. 12% of 555+15% of 666=?

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