Posted by
Ayushya Kaul on
Jun 08, 2013; 7:01pm
URL: http://discussion-forum.276.s1.nabble.com/gokhalemodel-papers-2-doubts-tp7581987p7582026.html
Section-A
This one was a real bugger:
Question 2-5
Two bugs are climbing a slippery wall. At time zero, both are at the bottom of the wall. Bug
A climbs at the rate of 3 inches per minute. Bug B climbs at the rate of 4 inches per minute.
Due to the slippery wall, however, Bug A slips back 1 inch every 2 inches climbed and Bug B
slips back 1.5 inches every 2 inches climbed. Moreover, Big A takes a rest of 1 minute after
every 2 minutes and Big B, a rest of 1 minute after every 3 minutes. Assume that slipping
occurs continuously when climbing
2. At what height (from the bottom) do the two bugs meet each other?
a) Do not meet b) 3 inches c) 5 inches d) 8 inches
3. What is the widest gap achieved between the bugs, within the first 10 minutes?
a) 2 inches b) 3 inches c) 2.5 inches d) 1.5 inches
4. If the wall is 1 foot high, when Bug A reaches the top, how far is Bug B behind?
a) 3 inches b) 2 inches c) 2.5 inches d) 3.5 inches
5. What is the average speed (per minute) of Bug A for the first 9 minutes?
a) 1 in/min b) 1.75 in/min c) 2 in/min d) ) 0.75 in/min
6. A bullock cart can travel at the rate of 4 kmph for the first two hours of a trip. After the first
two hours, the bullock cart’s speed drops to 3 kmph. How many hours will it take the
bullock cart to travel 20 km?
a) 5 b) 4.5 c) 5.33(approx) d)5.5
Here's the link btw:
http://www.gipe.ac.in/pdfs/Model%20question%20paper%202.pdf