Quantitative Aptitude For NIACL AO Prelims: 24th January 2019

Dear Aspirants,

Directions (1-5): In following questions three statements either A, B and C or I, II and III are given. Question will be solved using these statements. Solve the questions and give answer according to use of statements. 

Q1. Arun borrowed a sum which is compounded annually, what is the amount he returned in 2 years? 
I. Rate of interest is 6% per annum 
II. Simple interest incurred on the sum in one year is Rs. 600 
III. The borrowed sum is 10 times the amount earned as simple interest in two years.

Solution:

Q2. What is the area of circle ? 
Statement A : The radius of circle is three fifth of the slant height of a cone. 
Statement B : The volume of cone is 432 cm³. 
Statement C : the ratio between radius of cone and side of a square is 3 : 4.

Solution:

Q3. What is the cost price of scooter ? 
Statement A : The marked price of scooter is equal to selling price of a bike. 
Statement B : The profit earned on selling the scooter is 15%. 
Statement C : The selling prices of scooter and bike are in the ratio 3 : 5.

Solution:

Q4. What will be the average of five odd numbers? 
A. The largest no. is greater than the smallest by 12. 
B. The sum of the largest and smallest nos. is equal to twice the middle one. 
C. The difference of the first two numbers is 16.

Q5. What is speed of boat in still water? 
I. speed of stream is two-third of speed of boat in still water 
II. The boat covers 20 km in 2 hours in downstream 
III. The boat covers 10 km in 5 hours in upstream.

Solution:

Directions (6-10): Study the graphs carefully to answer the questions that follow: 

The given bar graph shows the number of children in six different schools and line graph shows the percentage of girls out of total children for each of these schools.

Q6. What is the total percentage of boys out of total children in schools C and F together ? (rounded off to two digits after decimal)

Solution:

Q7. What is the total number of boys in School E ?

Solution:

Q8. The total number of students in school C is approximately what per cent of the total number of students in school D ?

Solution:

Q9. What is the average number of boys in schools A and B together ?

Solution:

Q10. What is the ratio of the number of girls in school A to the number of girls in school B ?

Solution:

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

Q11. 7960+2956-8050+4028 = ?

Q12. 25×3.25+50.4÷24 = ?

Q13. 350% of ? ÷50+248=591

Q14. 1/2 of 3842+15% of ? =2449

Q15. (833.25-384.45)÷24= ?

                         
        
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