Infosys Puzzles-Help PLZZZ

[theo84]

I have exam on 24th.So Please help fast.

1.a man is travelling from village to town.he took 2hr 50mnts for travelling 8km uphill and 24km downhill.

He took 4hr30mnts for traveling from town to village.

Then what is speed of uphill & down hill

2.a man said that ,the total age of my 3 cousins including me is 50.

All ages are prime numbers.what are the cousins ages

Hint:don’t take 1 as prime number

3..My mother gave me some money to buy stamps having price 2paise,7 paise,15 paise, 10 paise and 20 paise and told me to buy 5 stamps each of three types and 6 stamps each of the other two types . By the time I reached the post office, I forgot how many of stamps of each type I had to buy. My father had given me a total of Rs.3 . Finally I was able to find the exact types of each I had to buy. Now tell me which these stamps were 5 in number and which were 6 in number.

4.There was a cycle race going on. 1/5th of the those in front of a person and 5/6th of those behind him gives the total number of participants. How many people took part in the race?

5. There are two trains. One from New York to Washington and second from Washington to New York. The total journey to a destination takes 5 hours. A train from New York to Washington leaves on hour at every hour The train from Washington to New York leaves an hour and on half an hour. How many trains will be passing if you are traveling from New York to Washington?

6.There is a die. In how many ways can u arrange 1,2,3,4,5,6 on the faces of the die such that 1&6, 2&5 and 4&3 always remain on opposite faces.

7.There are 729 balls of equal size and shape out of which one is heavier than rest all.Find the minimum number of weighing tha are required to find out that faulty ball

8..Uncle Reuben and aunt Cynthia came to town to shop.Reuben bought a suit and hat for $15.Cynthia paid as much as for her hat as Reuben did for his suit.Then she spent the rest of her money for her dress.On the way to home Cynthia called Reubens attention to the fact that his hat cost $1 more than her dress.Then uncle said if we had divided our hat money differently such that we bought a different hats mine costing 1 and ½ times cost of yours then we would have spent the equal amount of money.

(i)How much the hat would cost in that case?

(ii)What is the total amount spent?

9.A cow is standing 5 feet from the middle of the bridge. A train is coming towards the cow at speed of 90 miles per hour from the near end and the train is twice as long as the bridge. If the cow had tried to move forward in the same direction as of the train then the cow would have got hit by three feet. But it moved in opposite direction to the train and saved by one feet. Then What is the length of the bridge?

What is the gait of the cow? (Speed of the cow)