Puzzles contest - 100

HELP · 27-05-06, 01:46 PM

1. Two identical trains, at the equator start travelling round the
world in opposite directions. They start together. run at the same
speed and are on different tracks.Which train will wear out its wheel
treads first?

2. Next door to me live four brothers of different heights. Their
average height is 74 inches, and the difference in height amongst the
first three men is two inches. The difference between the third and the
fourth man is six inches. Can you tell how tall is each brother?

3. Fifty minutes ago if it was four times as many minutes past three o'clock. how many minutes is it to six o'clock?

4. while in San Francisco some time back, I hired a car to drive over
the Golden Gate bridge. I started in the afternoon when there was no
traffic rush. So J could drive at a speed of 40 miles an hour. While
0 returning. however. I got caught in the traffic rush and I
could only manage to drive at a speed of 25 miles an hour. What
was my average speed for the round trIp?

5. A family I know has several children. Each boy in this family has as
many sisters as brothers but each girl has tWice as many brothers as
sisters. How many brothers and sisters are there?

winner · 27-05-06, 01:56 PM

5. there are 4 brothers and 3 sisters...

2. 1st brother:70

2nd brother:72

3rd brother:74

4th brother:80

so, (70+72+74+80)/4=74

SHUBH · 27-05-06, 08:19 PM

1. Moving against the direction of rotation of earth.

SHUBH · 27-05-06, 08:29 PM

4, 2*x*y/(x+y) 2*40*25/(40+25)

5. 4 brothers and 3sisters.

brothersb1-> s1 s2 s3

b2-> s1 s2 s3

b3-> s1 s2 s3

b4-> s1 s2 s3

b1 has 3 brothers so3 sisters

s1 has two sisters so number of brothers is 4i.e. twice.

friends · 29-05-06, 10:49 AM

by hit n try method 4 brothers n 3 systers

Rena · 31-05-06, 06:22 AM

Hi,

3.26 minutes

27-05-06, 01:46 PM	#1 (permalink)
HELP Senior Member Join Date: Jan 2006 Posts: 976 Thanks: 0 Thanked 27 Times in 20 Posts Thanks: 0 Thanked 27 Times in 20 Posts Rep Power: 14	1. Two identical trains, at the equator start travelling round the world in opposite directions. They start together. run at the same speed and are on different tracks.Which train will wear out its wheel treads first? 2. Next door to me live four brothers of different heights. Their average height is 74 inches, and the difference in height amongst the first three men is two inches. The difference between the third and the fourth man is six inches. Can you tell how tall is each brother? 3. Fifty minutes ago if it was four times as many minutes past three o'clock. how many minutes is it to six o'clock? 4. while in San Francisco some time back, I hired a car to drive over the Golden Gate bridge. I started in the afternoon when there was no traffic rush. So J could drive at a speed of 40 miles an hour. While 0 returning. however. I got caught in the traffic rush and I could only manage to drive at a speed of 25 miles an hour. What was my average speed for the round trIp? 5. A family I know has several children. Each boy in this family has as many sisters as brothers but each girl has tWice as many brothers as sisters. How many brothers and sisters are there? __________________ WE WISH YOU ALL THE BEST SURESHKUMAR.NET TEAM

27-05-06, 01:56 PM	#2 (permalink)
winner Senior Member Join Date: Feb 2006 Location: India Posts: 237 Thanks: 0 Thanked 0 Times in 0 Posts Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 5	5. there are 4 brothers and 3 sisters... 2. 1st brother:70 2nd brother:72 3rd brother:74 4th brother:80 so, (70+72+74+80)/4=74 __________________ success==hardwork meena

29-05-06, 10:49 AM	#5 (permalink)
friends Junior Member Join Date: May 2006 Location: Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 3	by hit n try method 4 brothers n 3 systers __________________ jeeto

31-05-06, 06:22 AM	#6 (permalink)
Rena Senior Member Join Date: Mar 2006 Posts: 609 Thanks: 0 Thanked 26 Times in 9 Posts Thanks: 0 Thanked 26 Times in 9 Posts Rep Power: 10	Hi, 3.26 minutes __________________ \"A GREAT PLEASURE IN LIFE IS DOING WHAT PEOPLE SAY YOU CANNOT DO\".

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

27-05-06, 08:19 PM	#3 (permalink)
SHUBH Junior Member Join Date: May 2006 Location: Posts: 15 Thanks: 0 Thanked 0 Times in 0 Posts Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 3	1. Moving against the direction of rotation of earth.

27-05-06, 08:29 PM	#4 (permalink)
SHUBH Junior Member Join Date: May 2006 Location: Posts: 15 Thanks: 0 Thanked 0 Times in 0 Posts Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 3	4, 2xy/(x+y) 24025/(40+25) 5. 4 brothers and 3sisters. brothersb1-> s1 s2 s3 b2-> s1 s2 s3 b3-> s1 s2 s3 b4-> s1 s2 s3 b1 has 3 brothers so3 sisters s1 has two sisters so number of brothers is 4i.e. twice.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)