# Quiz Discussion

Two guns are fired from the same place at an interval of 6 minutes. A person approaching the place observes that 5 minutes 52 seconds have elapsed between the hearings of the sound of the two guns. If the velocity of the sound is 330 m/sec, the man was approaching that place at what speed (in km/h)?

Course Name: Quantitative Aptitude

• 1] 24 kmph
• 2] 27 kmph
• 3] 30 kmph
• 4] 36 kmph
##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

A man starts climbing a 11 m high wall at 5 pm. In each minute he climbs up 1 m but slips down 50 cm. At what time will he climb the wall?

• 1] 5:30 pm
• 2] 5:21 pm
• 3] 5:25 pm
• 4] 5:27 pm
##### Solution
2
Discuss

A moving train passes a platform 50 m long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/hr) is :

• 1] 24 km/hr
• 2] 36 km/hr
• 3] 40 km/hr
• 4] 45 km/hr
##### Solution
3
Discuss

Two cyclists start from the same place in opposite directions. One goes towards north at 18 kmph and the other goes towards south at 20 kmph. What time will they take to be 47.5 km apart ?

• 1]

$${ \text{1}}\frac{1}{4}{ \text{ hrs}}$$

• 2]

$${ \text{2}}\frac{1}{4}{ \text{ hrs}}$$

• 3]

2 hrs 23 min

• 4]

$${ \text{2}}\frac{1}{2}{ \text{ hrs}}$$

##### Solution
4
Discuss

In a flight of 6000 km, an aircraft was slowed down due to bad weather. The average speed for the trip was reduced by 400 kmph and the time of flight increased by 30 minutes. The original planned duration of the flight was :

• 1]

$${2\frac{1}{2}}$$ hours

• 2]

$${3\frac{1}{3}}$$hours

• 3]

$${4\frac{1}{3}}$$ hours

• 4]

$${5\frac{1}{3}}$$ hours

##### Solution
5
Discuss

Due to the technical snag in the signal system two trains start approaching each other on the same track from two different stations, 240 km away each other. When the train starts a bird also starts moving to and fro between the two trains at 60 kmph touching each train each time. The bird initially sitting on the top of the engine of one of the trains and it moves so till these trains collide. If these trains collide one and half hour after start, then how many kilometers bird travels till the time of collision of trains?

• 1] 90 km
• 2] 130 km
• 3] 120 km
• 4] 95 km
• 5] None of these
##### Solution
6
Discuss

To reach point B from point A at 4 pm, Sara will have to travel at an average speed of 18 kmph. She will reach point B at 3 pm if she travels at an average speed of 24 kmph. At what average speed should Sara travels to reach point B at 2 pm ?

• 1] 36 km/hr
• 2] 28 km/hr
• 3] 25 km/hr
• 4] 30 km/hr
##### Solution
7
Discuss

A racetrack is in the form of a right triangle. The longer of the legs of track is 2 km more than the shorter of the legs (both these legs being on a highway). The start and end points are also connected to each other through a side road. The escort vehicle for the race took the side road and rode with a speed of 30 km/h and then covered the two intervals along the highway during the same time with a speed of 42 km/h. find the length of the race track.

• 1] 14 km
• 2] 10 km
• 3] 24 km
• 4] 36 km
• 5] 30 km
##### Solution
8
Discuss

The ratio between the speed of a bus and train is 15 : 27 respectively. Also, a car covered a distance of 720 km in 9 hours. The speed of the Bus is three-fourth the speed of the car. How much distance will the train cover in 7 hours?

• 1] 760 km
• 2] 756 km
• 3] 740 km
• 4] None of these
##### Solution
9
Discuss

An aeroplane flies from place A to place B at the speed of 500 km/hr. On the return journey, its speed is 700 km/hr. The average speed of the aeroplane for the entire journey is ?

• 1]

$$566\frac{2}{3}{ \text{ km/hr}}$$

• 2]

$$583\frac{1}{3}{ \text{ km/hr}}$$

• 3]

$$583\frac{2}{3}{ \text{ km/hr}}$$

• 4]

$$600{ \text{ km/hr}}$$

##### Solution
10
Discuss

Two planes move along a circle of circumference 1.2 kms with constant speeds. When they move in different directions, they meet every 15 seconds and when they move in the same direction one plane overtakes the other every 60 seconds. The speed of the slower plane is :

• 1] 0.02 km/sec
• 2] 0.03 km/sec
• 3] 0.04 km/sec
• 4] 0.05 km/sec
# Quiz