qn from Verma

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Joined: 2006-06-14
Points: 6
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A train enters into a tunnel AB at A and exists B, A jackal is sitting at O in another bypassing tunnel AOB, which is connected to AB at point A and B. where OA is perpendicular to OB. A cat is sitting at P inside the tunnel AB making the shortest possible distance between O and P such that AO : BP = 30 : 32. When a train before entering into the AB makes a whistle somewhere before A, the jackal and cat run towards A, they meet with accidient with the train at the entrance A. Further if they move towards B still they meet with accident at exist of the tunnel by the same train coming from the same direction?

Q1. What is the ratio of the speed of jackal and cat ?
a. 4 : 3
b. 5 : 3
c. 1 : 1
d. Can’t be determined

Q2. The ratio of speeds of jackal is to train is  :
a. 5 : 1
b. 3 : 5
c. 1 : 5
d. Can’t be determined

Q3. If jackal moves towards OPA, it will meet with train at M1 and then AM1 is
a. 20
b. 16
c. 10
d. Cant be determined

Q4. If Jackal moves towards OPB and cat moves towards POA
Who will not meet accidient with the train ?
a. Jackal
b. cat
c. both a and b
d. can’t be derermined

Q5. The ratio of time taken by car and jackal in moving OAPO and PBOP respectively given that they do not meet with accident:
a. 1 : 1
b. 3 : 4
c. 5 : 4
d. None of these

jigar_er_civil's picture
User offline. Last seen 2 years 37 weeks ago. Offline
Joined: 2007-09-03
Points: 830
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A train enters into a tunnel
A train enters into a tunnel AB at A and exists B, A jackal is sitting at O in another bypassing tunnel AOB, which is connected to AB at point A and B. where OA is perpendicular to OB. A cat is sitting at P inside the tunnel AB making the shortest possible distance between O and P such that AO : BP = 30 : 32. When a train before entering into the AB makes a whistle somewhere before A, the jackal and cat run towards A, they meet with accidient with the train at the entrance A. Further if they move towards B still they meet with accident at exist of the tunnel by the same train coming from the same direction?
Q1. What is the ratio of the speed of jackal and cat ?
a. 4 : 3
b. 5 : 3
c. 1 : 1
d. Can’t be determined
Q2. The ratio of speeds of jackal is to train is  :
a. 5 : 1
b. 3 : 5
c. 1 : 5
d. Can’t be determined
Q3. If jackal moves towards OPA, it will meet with train at M1 and then AM1 is
a. 20
b. 16
c. 10
d. Cant be determined
Q4. If Jackal moves towards OPB and cat moves towards POA
Who will not meet accidient with the train ?
a. Jackal
b. cat
c. both a and b
d. can’t be derermined
Q5. The ratio of time taken by car and jackal in moving OAPO and PBOP respectively given that they do not meet with accident:
a. 1 : 1
b. 3 : 4
c. 5 : 4
d. None of these

Little Star can any one tell me its right or wrong?

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Incognito
Incognito's picture
Groups: None
thanks for the solution but can you give the explanation as well

can you please explain how you got to that answer...thanks...

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