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Numerical Ability
Time Distance and Speed
There is a 200 miles long tunnel. one train enters the tunnel at a speed of 200mph while the other trains enter the tunnel in the opposite direction at a speed of 1000 mph. A bee travels at a speed of 1500 mph enters the tunnel goes to and back until it reaches the train. What is the distance covered by the bee when the two train collides (the bee survives)
Read Solution (Total 3)
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- answer is 250 mile
relative speed to approach each other train is 200+1000=1200mile
so collide after 200/1200=1/6 hour
bee covered the distance 1500*1/6=250mile - 12 years agoHelpfull: Yes(60) No(9)
- time taken by bee = initial dist/ relative speed
200/1200
ie : 1/6 hours
distance travelled by bee = s* t
1/6 * 5000 = 250(ans) - 12 years agoHelpfull: Yes(6) No(4)
- Time taken to collide = 200/ ( 200+1000) hours = 1/6 hour
Distance traveled by bee in 1/6 hour = 1500/6 = 250 miles - 9 years agoHelpfull: Yes(1) No(0)
TCS Other Question
in a g6 summit being held in London a French, a german, an Italian, a british, a Spanish and a polish diplomat represent their respective countries and participate in a round table conference to strengthen the co operation between these countries. There are exactly 6chairs evenly spaced around a circular table. The chairs are numbered 1 through 6, with successively numbered chairs next to each other and chair number 1 next to chair no6. Each chair is occupied by one of the diplomats. The following conditions apply.
• Polish sits immediately next to british
• German sits immediately next to Italian
• French doesn’t sit immediatedly next to Italian
• If Spanish sits immediatedly next to polish, Spanish doesn’t sit next to Italian
Which of the following seating arrangement of the 6 diploamts in chair 1-6 would not violate the given conditions?
A) French, polish, british, Italian, Spanish, german
B) French, german, Italian, polish, british, Spanish
C) French, german, Italian, Spanish, polish, british
D) French, Spanish, polish, british, german, Italian
E) French, british, german, Spanish, Italian, poitiere
a)C b)D c)A d)B
if n is the sum of two consecutive odd integrs and less than 100,wot is the greatest posiblity of n?
98
94
96
99