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Question 1 of 10
1. Question
1 pointsCategory: Quantitative AptitudeDirections (15) The sum of length of two trains and the time taken to cross each other when travelling in opposite direction of each other is given in first and second line chart respectively.
Length of the train is in meter and time taken to cross each other when travelling in opposite direction of each other is in seconds.
Find the time taken by train P and R to cross each other if both are travelling in opposite direction.
Correct
Answer – 4)12.8 seconds
Explanation –
(35+29) / (1.9+3.1) = 64 / 5 = 12.8 seconds
Complete Explanation –
Let, the length of trains (in meter) P, Q, R, S and T is p, q, r, s, t respectively.
And, speed of trains (in m/s) P, Q, R, S and T is a, b, c, d and e respectively.
2*( p+q+r+s+t ) = (72+66+60+64+68)
2*(72+60+t) = 330
T = 33
T+P = 68
33 + P = 68
P = 35
Similarly,
Q = 37
R = 29
S = 31
When, Train P and Q cross each other,
(p + q) / (a+b) = 15
72 / (a+b) = 15
(a+b) = 72/15
(a+b) = 4.8 m/s
Similarly, (b+c) = 6 m/s
c + d = 5 m/s
d + e = 4 m/s
e + a = 4 m/s
2*(a+b+c+d+e) = 23.8
2*(4.8+5+e) = 23.8
e = 2.1 m/s
a = 1.9 m/s
d = 1.9 m/s
c = 3.1 m/s
b = 2.9 m/s
Incorrect
Answer – 4)12.8 seconds
Explanation –
(35+29) / (1.9+3.1) = 64 / 5 = 12.8 seconds
Complete Explanation –
Let, the length of trains (in meter) P, Q, R, S and T is p, q, r, s, t respectively.
And, speed of trains (in m/s) P, Q, R, S and T is a, b, c, d and e respectively.
2*( p+q+r+s+t ) = (72+66+60+64+68)
2*(72+60+t) = 330
T = 33
T+P = 68
33 + P = 68
P = 35
Similarly,
Q = 37
R = 29
S = 31
When, Train P and Q cross each other,
(p + q) / (a+b) = 15
72 / (a+b) = 15
(a+b) = 72/15
(a+b) = 4.8 m/s
Similarly, (b+c) = 6 m/s
c + d = 5 m/s
d + e = 4 m/s
e + a = 4 m/s
2*(a+b+c+d+e) = 23.8
2*(4.8+5+e) = 23.8
e = 2.1 m/s
a = 1.9 m/s
d = 1.9 m/s
c = 3.1 m/s
b = 2.9 m/s

Question 2 of 10
2. Question
1 pointsCategory: Quantitative AptitudeDirections (15) The sum of length of two trains and the time taken to cross each other when travelling in opposite direction of each other is given in first and second line chart respectively.
Length of the train is in meter and time taken to cross each other when travelling in opposite direction of each other is in seconds.
Time taken by train Q to pass train T if they are travelling in the same direction.
Correct
Answer 2) 87.5 seconds
Explanation –
(33+37) / (2.92.1) = 70 / .8 = 87.5 secondsIncorrect
Answer 2) 87.5 seconds
Explanation –
(33+37) / (2.92.1) = 70 / .8 = 87.5 seconds 
Question 3 of 10
3. Question
1 pointsCategory: Quantitative AptitudeDirections (15) The sum of length of two trains and the time taken to cross each other when travelling in opposite direction of each other is given in first and second line chart respectively.
Length of the train is in meter and time taken to cross each other when travelling in opposite direction of each other is in seconds.
If train R crossed a platform of certain length in 21 seconds then find the approximate time taken by train T to cross the same platform.
Correct
Answer 1) 33
Explanation
Let, the length of platform = x meter
(29+x) / 3.1 = 21
X = 36.1
Time taken by T to cross same platform
(36.1 + 33 ) / 2.1 = 33 secondsIncorrect
Answer 1) 33
Explanation
Let, the length of platform = x meter
(29+x) / 3.1 = 21
X = 36.1
Time taken by T to cross same platform
(36.1 + 33 ) / 2.1 = 33 seconds 
Question 4 of 10
4. Question
1 pointsCategory: Quantitative AptitudeDirections (15) The sum of length of two trains and the time taken to cross each other when travelling in opposite direction of each other is given in first and second line chart respectively.
Length of the train is in meter and time taken to cross each other when travelling in opposite direction of each other is in seconds.
Train S was travelling from Kanpur to Lucknow while train P was travelling from Lucknow to Kanpur. Train S started after 3 hours of train P. If both the trains meet at a distance of 150 km from Lucknow then find the (approximate) distance between Kanpur and Lucknow.
Correct
Answer: 4) 280km
Explanation–
Speed of train P = 18 /5 * 1.9 = 6.84 km/h
Speed of train S = 18 /5 *1.9 = 6.84 km/h
Time taken by P to travel 150 km = 150 / 6.84 = 22 hr (approx)
Total time taken by S = 22 – 3 = 19 hr
Distance travelled by S = 6.84 * 19 = 130 km (approx)
Required distance = 130 + 150 = 280 (approx)Incorrect
Answer: 4) 280km
Explanation–
Speed of train P = 18 /5 * 1.9 = 6.84 km/h
Speed of train S = 18 /5 *1.9 = 6.84 km/h
Time taken by P to travel 150 km = 150 / 6.84 = 22 hr (approx)
Total time taken by S = 22 – 3 = 19 hr
Distance travelled by S = 6.84 * 19 = 130 km (approx)
Required distance = 130 + 150 = 280 (approx) 
Question 5 of 10
5. Question
1 pointsCategory: Quantitative AptitudeDirections (15) The sum of length of two trains and the time taken to cross each other when travelling in opposite direction of each other is given in first and second line chart respectively.
Length of the train is in meter and time taken to cross each other when travelling in opposite direction of each other is in seconds.
Train R and train S were travelling from station A to station B which is 108 km apart. If both reached the station B at the same time then find after how much time (approx in hours) of train S, would train R leaved station A?
Correct
Answer 3) 6 hr
Explanation–
Speed of train R = 3.1 * 18/5 = 11.16 km/h
Speed of train S = 1.9 * 18/5 = 6.84 km/h
Time taken by R = 108 / 11.16 = 9.68 hours (approx)
Time taken by S = 108 / 6.84 = 15.79 hours (approx)
Difference = 15.79 – 9.68 = 6.11 hoursIncorrect
Answer 3) 6 hr
Explanation–
Speed of train R = 3.1 * 18/5 = 11.16 km/h
Speed of train S = 1.9 * 18/5 = 6.84 km/h
Time taken by R = 108 / 11.16 = 9.68 hours (approx)
Time taken by S = 108 / 6.84 = 15.79 hours (approx)
Difference = 15.79 – 9.68 = 6.11 hours 
Question 6 of 10
6. Question
1 pointsCategory: Quantitative AptitudeDirections (610)There are 3 types of departments namely Electrical, Electronics and Telecommunication in a company and certain number of people were working in all three departments. Each person was working on one department or the other. 64% people where in Electrical department. People working in Telecommunication department only were 1/16 of the Electrical department. Person working in both Electronics and Telecommunication department except Electrical department were 55. Person working in only Electronics department is equal to person in Telecommunication department only + 29.
What is the total number of people working in Electronics department only?
Correct
Answer1) 41
Explanation:
People working in Electronics department only = 4x + 29 =12+29 =41
Complete Explanation –
Let Electrical is denoted as El, electronics only as Et and Telecommunications only is denoted as T
Let the no. of people working in the company = 100x
People working in Electrical department = 64% of 100x = 64x
People working in Telecommunication department only = 1/16 * 64x = 4x
People working in both Electronics and Telecommunication department except Electrical department = 55
People working in Electronics department only = 4x +29
Total = 100x
100x = 64x +4x+29 +55 + 4x
28x = 84
x = 3
Therefore total people = 100x = 100*3 = 300
People working in Electrical department = 64x = 64*3 = 192
People working in Telecommunication department only = 1/16 * 64x = 4x = 4*3 = 12
People working in both Electronics and Telecommunication department except Electrical department = 55
People working in Electronics department only = 4x + 29 =12+29 =41Incorrect
Answer1) 41
Explanation:
People working in Electronics department only = 4x + 29 =12+29 =41
Complete Explanation –
Let Electrical is denoted as El, electronics only as Et and Telecommunications only is denoted as T
Let the no. of people working in the company = 100x
People working in Electrical department = 64% of 100x = 64x
People working in Telecommunication department only = 1/16 * 64x = 4x
People working in both Electronics and Telecommunication department except Electrical department = 55
People working in Electronics department only = 4x +29
Total = 100x
100x = 64x +4x+29 +55 + 4x
28x = 84
x = 3
Therefore total people = 100x = 100*3 = 300
People working in Electrical department = 64x = 64*3 = 192
People working in Telecommunication department only = 1/16 * 64x = 4x = 4*3 = 12
People working in both Electronics and Telecommunication department except Electrical department = 55
People working in Electronics department only = 4x + 29 =12+29 =41 
Question 7 of 10
7. Question
1 pointsCategory: Quantitative AptitudeDirections (610)There are 3 types of departments namely Electrical, Electronics and Telecommunication in a company and certain number of people were working in all three departments. Each person was working on one department or the other. 64% people where in Electrical department. People working in Telecommunication department only were 1/16 of the Electrical department. Person working in both Electronics and Telecommunication department except Electrical department were 55. Person working in only Electronics department is equal to person in Telecommunication department only + 29.
What is the total number of people working in the company?
Correct
Answer 2) 300
Explanation
Let the no. of people working in the company = 100x
100x = 64x +4x+29 +55 + 4x
28x = 84
x = 3Incorrect
Answer 2) 300
Explanation
Let the no. of people working in the company = 100x
100x = 64x +4x+29 +55 + 4x
28x = 84
x = 3 
Question 8 of 10
8. Question
1 pointsCategory: Quantitative AptitudeDirections (610)There are 3 types of departments namely Electrical, Electronics and Telecommunication in a company and certain number of people were working in all three departments. Each person was working on one department or the other. 64% people where in Electrical department. People working in Telecommunication department only were 1/16 of the Electrical department. Person working in both Electronics and Telecommunication department except Electrical department were 55. Person working in only Electronics department is equal to person in Telecommunication department only + 29.
What is the difference between the number of people working in both Electronics and Telecommunication department except Electrical department to the sum of the number of people working in Telecommunication department only and Electronics department only?
Correct
Answer 4) 2
Explanation
55 – (41+12) = 2Incorrect
Answer 4) 2
Explanation
55 – (41+12) = 2 
Question 9 of 10
9. Question
1 pointsCategory: Quantitative AptitudeDirections (610)There are 3 types of departments namely Electrical, Electronics and Telecommunication in a company and certain number of people were working in all three departments. Each person was working on one department or the other. 64% people where in Electrical department. People working in Telecommunication department only were 1/16 of the Electrical department. Person working in both Electronics and Telecommunication department except Electrical department were 55. Person working in only Electronics department is equal to person in Telecommunication department only + 29.
What is the total number of people working in Electrical department?
Correct
Answer 5) 192
Explanation
People working in Electrical department = 64% of 100x = 64x = 64*3 = 192Incorrect
Answer 5) 192
Explanation
People working in Electrical department = 64% of 100x = 64x = 64*3 = 192 
Question 10 of 10
10. Question
1 pointsCategory: Quantitative AptitudeDirections (610)There are 3 types of departments namely Electrical, Electronics and Telecommunication in a company and certain number of people were working in all three departments. Each person was working on one department or the other. 64% people where in Electrical department. People working in Telecommunication department only were 1/16 of the Electrical department. Person working in both Electronics and Telecommunication department except Electrical department were 55. Person working in only Electronics department is equal to person in Telecommunication department only + 29.
If 50 people are working in both electrical and telecommunication except electronics department and 22 people are working in both electrical and electronics department except telecommunication department, then find the number of people working in electrical department only if no one is working in all three departments?
Correct
Answer 2) 120
Explanation–
192 – (50+22) = 120Incorrect
Answer 2) 120
Explanation–
192 – (50+22) = 120
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