Quantitative Aptitude Test

Result

Quantitative Aptitude Test - 4

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Question 1
4 / -1

A container contains 30 liters of alcohol. 3 liters of alcohol are taken out and replaced by an equal amount of water. The same process is repeated 2 times more. How much alcohol is left in the container now?

A
23.45 liters

B
12.34 liters

C
21.87 liters

D
12.56 liters

Solution

Where A, R, Q, and n is the name of the product, the quantity taken out, the original quantity of the product and process repeated respectively:
Question 2
4 / -1

A
3/2

B
2/5

C
3

D
2

Solution
Question 3
4 / -1

A, B, and C can do a work in 24, 16 and 12 days respectively. How many days will it take them to complete the work, if the three of them decide to work together?

A

B

C

D

Solution
Question 4
4 / -1

The captain of a cricket team of 11 members is 26 years old and the wicket-keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team?

A
23 years

B
24 years

C
25 years

D
None of these

Solution

Given,

Age of the captain is 26 years and wicket keeper's age is 29 years.

Let the average age of the whole team by x years.

∴ 11x - (26 + 29) = 9(x - 1)

⇒ 11x - 9x = 46

⇒ 2x = 46

⇒ x = 23

So, average age of the team is 23 years.
Question 5
4 / -1

Ganesh and Bhima can complete a work in 6 days. If Ganesh alone can finish it in 10days, in how many days Bhima can complete the work?

A
18

B
14

C
12

D
15

Solution
Question 6
4 / -1

If A = { x : x ∈ N, 0 < x < 6} and B = {x : x is a prime natural number, 0 < x < 10} Find A - B ?

A
{2, 3, 5}

B
{1, 4}

C
{2, 3}

D
{2, 3, 4}

Solution

Given:

A = { x : x ∈ N, 0 < x < 6}

B = {x : x is a prime natural number, 0 < x < 10}

A = { x : x ∈ N, 0 < x < 6}

A = {1, 2, 3, 4, 5}

B = {x : x is a prime natural number, 0 < x < 10}

B = {2, 3, 5, 7}

A - B = {1, 2, 3, 4, 5} - {2, 3, 5, 7}

= {1, 4}

∴ The value A - B is {1, 4}.
Question 7
4 / -1

Two numbers are in the ratio 7 : 11. If their HCF is 28, then sum of the two numbers is:

A
112

B
308

C
504

D
196

Solution
Question 8
4 / -1

It takes 10 hours for a person to travel a distance. If he reduces his speed by 20%, then what is the percentage increase in the time taken to cover the same distance?

A
33.33%

B
20%

C
25%

D
Can not be determined

Solution
Question 9
4 / -1

In the figure, ABC is a right angle triangle where F is the midpoint of side AB and D is the midpoint of side BC . What is the relation between AD, CF, and AC?

A

B

C

D

Solution
Question 10
4 / -1

A

B

C

D

Solution

Median of 'n' observations is the value at the central position when the data is arranged in ascending or descending order.