In a dinner party both fish and meat were served. Some took only fish and some only meat. There were some vegetarians who did not accept either. The rest accepted both fish and meat. Which of the following Venn-diagrams correctly reflects this situation?
A) 1 B) 2 C) 3 D) 4
Answer: A) 1
Explanation:
The Given situation can be represented as under:
Which of the following Venn- diagram correctly illustrates the relation ship among the classes : Carrot, Food, Vegetables
A) a B) b C) c D) d
Answer: A) a
Explanation:
All Carrots are Vegetables. All Vegetables are Foods.
| A) 1 | B) 2 |
| C) 3 | D) 4 |
Two stations P and Q are 110 km apart on a straight track. One train starts from P at 7 a.m. and travels towards Q at 20 kmph. Another train starts from Q at 8 a.m. and travels towards P at a speed of 25 kmph. At what time will they meet?
A) 10.30B) 10C) 8.45D) 9.30
Answer: B) 10
Explanation:
Assume both trains meet after x hours after 7 am
Distance covered by train starting from P in x hours = 20x km
Distance covered by train starting from Q in (x-1) hours = 25(x-1)
Total distance = 110
=> 20x + 25(x-1) = 110
=> 45x = 135
=> x= 3
Means, they meet after 3 hours after 7 am, ie, they meet at 10 am
A train travelling at a speed of 75 mph enters a tunnel 
A) 2.5 minB) 3 minC) 3.2 minD) 3.5 min
Answer: B) 3 min
Explanation:
Total distance covered =
=
Time taken = 
=
=
= 3 min
Two trains having equal lengths, take 10 seconds and 15 seconds respectively to cross a post. If the length of each train is 120 meters, in what time (in seconds) will they cross each other when traveling in opposite direction?
A) 10 B) 25 C) 12 D) 20
Answer: C) 12
Explanation:
Speed of train 1 = 
Speed of train 2 =
if they travel in opposite direction, relative speed = 12 + 8 = 20 m/sec
distance covered = 120 + 120 = 240 m
time = distance/speed = 240/20 = 12 sec
Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is:
A) 9 B) 9.6 C) 10 D) 10.8
Answer: D) 10.8
Explanation:
Relative speed
= (60 + 40) km/hr =[ 100 x ( 5 / 18 ) ]m/sec = ( 250 /9 ) m/sec.
Distance covered in crossing each other
= (140 + 160) m = 300 m.
Required time = [ 300 x ( 9/250 ) ] sec = ( 54/ 5 )sec = 10.8 sec.
train moves with a speed of 108 kmph. Its speed in metres per second is :
A) 10.8B) 18C) 30D) 38.8
Answer: C) 30
Explanation:
108 kmph =
A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train ?
A) 69.5 km/hr B) 70 km/hr C) 79 km/hr D) 79.2 km/hr
Answer: D) 79.2 km/hr
Explanation:
Let the length of the train be x metres and its speed by y m/sec.
Then,
Now, 
A man sitting in a train which is traveling at 50 kmph observes that a goods train, traveling in opposite direction, takes 9 seconds to pass him. If the goods train is 280 m long, find its speed.?
A) 60 B) 62 C) 64 D) 65
Answer: B) 62
Explanation:
Relative speed =
Speed of goods train = (112 - 50) kmph = 62 kmph.
A jogger is running at 9 kmph alongside a railway track is 240 meters ahead of the engine of a 120 meters long train running at 45 kmph in the same direction. In how much time will the train pass the jogger ?
A) 48 secB) 36 secC) 18 secD) 72 sec
Answer: B) 36 sec
Explanation:
Speed of the train relative to jogger = (45-9) km/hr = 36 km/hr
=
Distance to be covered =(240 + 120)m = 360 m
Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds?
A) 48 B) 24 C) 38 D) 36
Explanation:
Less Cogs
Number of turns required=80 ×
270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train ?
A) 230 mB) 240 mC) 260 mD) 320 m
Answer: A) 230 m
Explanation:
Relative speed = (120 + 80) km/hr
=
Let the length of the other train be x metres.
Then,
| A) 10 straight lines and 34 triangles | B) 9 straight lines and 34 triangles |
| C) 9 straight lines and 36 triangles | D) 10 straight lines and 36 triangles |
| A) 9 | B) 11 |
| C) 15 | D) 16 |
| A) 10 | B) 12 |
| C) 14 | D) 16 |
