Quantitative Aptitude - Online Test

Q1. Direction: What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)?
(40.0002)2 × 12.85
Answer : Option D
Explaination / Solution:

(40.0002)2 × 12.85
(40)2 × 13
1600 × 13
20,800


Q2. Direction: What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)?
7777.009 – 596.999 – 89.989 = ?
Answer : Option C
Explaination / Solution:



Q3. Direction: What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)?
(25.01)2 – (15. 99)2 = ?
Answer : Option C
Explaination / Solution:



Q4. Direction: What approximate value should come in place of the question mark (?) in the following question (Note: You are not expected to calculate the exact value)?
7999.99 + 72 × 49.99 = ?
Answer : Option D
Explaination / Solution:

? = 8000 + 72 * 50 = 8000 + 3600
? = 11600 (approx.)

Q5. Directions: What approximate values should come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value).
8044.986 + 3250.005 + 149.996 = ?
Answer : Option D
Explaination / Solution:

? = 8044.986 + 3250.005 + 149.996
? = 8045 + 3250 + 150
? = 11445

Q6. Directions: What will come in the place of question mark (?) in the following question? (You do not have to calculate the exact value).
14.001 × 26.99 × 7.998 = ?
Answer : Option B
Explaination / Solution:

? = 14.001 × 26.99 × 7.998
? = 14 × 26 × 8
? = 3024

Q7. Direction: What approximate value should come in place of the question mark (?) in the following question (Note: You are not expected to calculate the exact value)?
23.999 × 9.004 × 16.997 = ?
Answer : Option D
Explaination / Solution:

23.999 × 9.004 × 16.997 = ? 
? = 23.999 × 9.004 × 16.997 
After rounding off the numbers , we get 
? = 24 × 9 × 17 
? = 3672 
Thus, the required answer is 3700. 
Hence, option D is correct.

Q8. Direction: What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)?
√(34.999 * 99.999 ÷ 5.045 + 750.0003 ÷ 24.999) = ?
Answer : Option C
Explaination / Solution:

√(34.999 * 99.999 ÷ 5.045 + 750.0003 ÷ 24.999) = ?
√(35 * 100 ÷ 5 + 750 ÷ 25) = ?
√(3500 * 5 + 30) = ?
√(700 + 30) = ?
√730 = ?
? = 27 (Approx)

Q9. Directions: Study the following graph carefully to answer these questions.


What is the ratio of the total population of State A for the years 2011, 2012 and 2013 together to the total population of State B for the years 2015, 2016 and 2017 together?

Answer : Option C
Explaination / Solution:

Total population of state A in the years 2011, 2012 and 2013 = 40 + 45 + 60 = 145 
Total population of state B in the years 2015, 2016 and 2017 = 80 + 90 + 100 = 270 
Required ratio = 145:270 
= 29:54

Q10. Directions: Study the following graph carefully to answer these questions.

For which state and in which year was the percent rise in population from the previous year was the highest?
Answer : Option A
Explaination / Solution:

It is clear from the graph that the per cent rise in the population from the previous year was highest for state B in the year 2013 .