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There are 12 compartments in passenger train carries on average 20 passengers per compartment. If at least 20 passengers were sitting in each compartment, no any compartment has equal no of passengers and any compartment does not exceed the number of average passengers except 12th compartment. Each compartment has different number of passengers not below 10. Find how many passengers can be accommodated in 12th compartment ?

The average speed of a car is 9/5 times the average speed of the bus. A van covers 920 km in 23 hours. The speed of the bus is twice the speed of the van. How much distance the car cover in 4 hours?

Correct

Explanation :
Speed of van = 920/23 = 40 kmph
Speed of bus = 80 kmph
Speed of car = 9/5 * 80 = 144 kmph
Distance covered by car = 144 * 4 = 576

Incorrect

Explanation :
Speed of van = 920/23 = 40 kmph
Speed of bus = 80 kmph
Speed of car = 9/5 * 80 = 144 kmph
Distance covered by car = 144 * 4 = 576

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

10 men and 6 women together can complete a piece of work in 6 days. The work done by a man in one day is double the work done by a woman in one day. If 10 men and 6 women started working and after 2 days, 4 men left and 4 new women joined them, in how many more days will the work be completed?

Correct

Explanation:
1M = 2W
10 men and 6 women = 26 women
After 2 days : 6 Women + 4 Women +6 men = 22 Women
(26 * 6) / 1 = (26 * 2)/x
x = 1/3
(26 * 2) / 1/3 = (22 * x)/ 2/3
x = 52/11

Incorrect

Explanation:
1M = 2W
10 men and 6 women = 26 women
After 2 days : 6 Women + 4 Women +6 men = 22 Women
(26 * 6) / 1 = (26 * 2)/x
x = 1/3
(26 * 2) / 1/3 = (22 * x)/ 2/3
x = 52/11

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

In an examination, there are three sections namely Physics, Chemistry and Biology. Physics part contains 4 questions. There are 5 questions in Chemistry section and 6 questions in Biology section. If three questions are selected randomly from the list of questions then what is the probability that all of them are from Chemistry?

Correct

Explanation :
Total no of questions= 15
Probability = 5c3/15c3 = 2/91

Incorrect

Explanation :
Total no of questions= 15
Probability = 5c3/15c3 = 2/91

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

Six litre of milk was taken out from a vessel and is then filled with water. This operation is performed two more times. The ratio of the quantity of milk now left in vessel to that of the water is 1 : 8. How much is the quantity of the milk contained by the vessel originally?