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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

Q. (1-4) Study the following Line – chart carefully to answer these questions

X and Y started the task together and Y left after some time. X completed the remaining work in 2 hour. After how many hours from the start did Y leave?

Correct

Answer : 4. 2.25 hour
Explanation:-
Let the time for which Y worked be x hours
One – hour work of Y = 1/15
Work done by Y = (x) × 1/15
One – hour work of X = 1/5
Time for which X worked = (x + 2) hours
Work done by X = (x + 2) × 1/5
Total work done by X and Y = 1
X/15 + (x + 2)/5 = 14x + 6 = 15
x = 9/4 = 2.25 hour

Incorrect

Answer : 4. 2.25 hour
Explanation:-
Let the time for which Y worked be x hours
One – hour work of Y = 1/15
Work done by Y = (x) × 1/15
One – hour work of X = 1/5
Time for which X worked = (x + 2) hours
Work done by X = (x + 2) × 1/5
Total work done by X and Y = 1
X/15 + (x + 2)/5 = 14x + 6 = 15
x = 9/4 = 2.25 hour

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

Q. (1-4) Study the following Line – chart carefully to answer these questions

Approximately how long will it take for U, V, Z and R together to complete the task?

Correct

Answer : 4.2.7 hour
Explanation-
U’s one – hour work = 1/6
V’s one – hour work = 1/12
Z’s one – hour work = 1/18
R’s one – hour work = 1/15
If all of them work together, their one – hour work = 1/6 + 1/12 + 1/18 + 1/15 = 67/180
Total time taken = 182/67 = 2.69 hour

Incorrect

Answer : 4.2.7 hour
Explanation-
U’s one – hour work = 1/6
V’s one – hour work = 1/12
Z’s one – hour work = 1/18
R’s one – hour work = 1/15
If all of them work together, their one – hour work = 1/6 + 1/12 + 1/18 + 1/15 = 67/180
Total time taken = 182/67 = 2.69 hour

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

Q. (1-4) Study the following Line – chart carefully to answer these questions

If W leaves 2 hours after U and W started the task, then how many more hour will U take to complete it?

Correct

Answer : 3. 2.8 hour
Explanation-
U’s one – hour work = 1/6
W can do work in 10 hours
W’s one – hour work = 1/10
U and W‘s one – hour work if they work together = (1/6 + 1 /10) = 16/60
Total work done in 2 hours = 16/30
Work left = 1 – 16/30 = 14/30
Time taken by U to complete the rest of work = (14/30) / (1/6) = 14/5 = 2.8 hour

Incorrect

Answer : 3. 2.8 hour
Explanation-
U’s one – hour work = 1/6
W can do work in 10 hours
W’s one – hour work = 1/10
U and W‘s one – hour work if they work together = (1/6 + 1 /10) = 16/60
Total work done in 2 hours = 16/30
Work left = 1 – 16/30 = 14/30
Time taken by U to complete the rest of work = (14/30) / (1/6) = 14/5 = 2.8 hour

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

Q. (1-4) Study the following Line – chart carefully to answer these questions

X, Z and R worked on the task for one hour and then X and R left. If Z complete the remaining work, then how many more hours did Z take to finish the remaining work?

Correct

Answer : 3.12.2 hour Explanation-
One – hour work of X = 1/5
Z’s one – hour work = 1/18
R’s one – hour work = 1/15
Total work done in one hour = 1/5 + 1/18 + 1/15 = 29/90
Work left = 1 – 29/90 = 61/90
Time taken by Z to complete the left work = (61/90) / (1/18) = 61/5 = 12.2 hour

Incorrect

Answer : 3.12.2 hour Explanation-
One – hour work of X = 1/5
Z’s one – hour work = 1/18
R’s one – hour work = 1/15
Total work done in one hour = 1/5 + 1/18 + 1/15 = 29/90
Work left = 1 – 29/90 = 61/90
Time taken by Z to complete the left work = (61/90) / (1/18) = 61/5 = 12.2 hour

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

The average of 7 data is 34 and the average of first three data is 28 and the average of next two data is 47. Find the average of last two data?

Correct

Answer : 1. 30
Explanation:

Incorrect

Answer : 1. 30
Explanation:

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

3 22 ? 673 2696 8093

Correct

Answer : 4. 134
Explanation

Incorrect

Answer : 4. 134
Explanation

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

A letter is taken from the word ASSISTANT and another from the word STATISTICS. What is the probability that both the letters are the same?

Correct

Answer : 3. 19/90
Explanation

Incorrect

Answer : 3. 19/90
Explanation

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

Ramesh has 20% savings with him from his monthly salary. If expenditure on clothing is 25% of overall expenditure and his total expenditure except clothing is 3600 then find his saving.

Correct

Answer : 4. 1200
Explanation

Incorrect

Answer : 4. 1200
Explanation

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Marked price of A is Rs. 1600 more than its cost price. When discount on A is 500 a profit of 25% is obtained. At what price should A be sold to obtain a 30% profit?