Search found 56 matches
probability help
Four female friends & four male friends will be pictured in a advertising photo. If the photographer wants to line them up in one row,with men & women alternating.How many possible arrangements may she chose?
A)40320
B)1680
C)1152
D)576
E)70
OA C
- by mitaliisrani
Thu Apr 05, 2012 12:28 am- Forum: Problem Solving
- Topic: probability help
- Replies: 6
- Views: 1408
- by mitaliisrani
Mon Oct 11, 2010 12:00 am- Forum: Problem Solving
- Topic: gmat prep co-ordinate geometry
- Replies: 7
- Views: 1740
kaplan test problem
Marge has 3 pumps for filling her swimming pool. When all 3 pumps work at their maximum rates , the swimming pool is filled in 56minutes. Pump 1's maximum rate is twice the maximum rate of pump 2 and four times the maximum rate of pump 3 . How long would it take Marge to fill the pool if she used on...
- by mitaliisrani
Mon Sep 13, 2010 11:19 pm- Forum: Problem Solving
- Topic: kaplan test problem
- Replies: 5
- Views: 2022
Tough percentages problem,
A test has 225 questions. Robin answered 60% of the first 110 questions correctly. What percent of the remaining questions should he answer correctly so that he gets 75% of the maximum mark in the test approximately?
A) 89%
B) 84%
C) 81%
D) 78%
OA is A
- by mitaliisrani
Fri Sep 03, 2010 4:46 am- Forum: Problem Solving
- Topic: Tough percentages problem,
- Replies: 1
- Views: 1087
- by mitaliisrani
Fri Sep 03, 2010 1:04 am- Forum: Data Sufficiency
- Topic: number properties ds problem..
- Replies: 4
- Views: 1184
time speed dist
Two trains T1 T2, which are 539 km apart start at the same time, move towards each other. They just complete crossing each other in 3hrs 20 mins. fIND THE DIFFERENCE BETWEEN THE LENGTHS OF THE TWO TRAINS, GIVEN THAT THEIR LENGTHS ARE IN THE RATIO 2:3 AND THEIR SPEEDS ARE 25M/S and 20m/s respectively...
- by mitaliisrani
Thu Sep 02, 2010 9:55 pm- Forum: Problem Solving
- Topic: time speed dist
- Replies: 1
- Views: 1276
Probability of same suit
If two cards are drawn at random, what is the probability that both belong to different suits?
A) 3/51
B) 13/51
C) 26/51
D) 39/51
E) 13/39
OA is[spoiler] D...can some 1 plz solve
- by mitaliisrani
Tue Aug 31, 2010 12:27 pm- Forum: Problem Solving
- Topic: Probability of same suit
- Replies: 2
- Views: 1668
probability
A speaks truth in 60% of the cases while B speaks truth in 70% of the cases. When they lie they say the same lie. In what percent cases are they likely to contradict each other?
A) 30%
B) 40%
C)46%
D) 54%
E) 80%
ANs: OA is C
- by mitaliisrani
Tue Aug 31, 2010 12:07 pm- Forum: Problem Solving
- Topic: probability
- Replies: 3
- Views: 10222
Number of men???
A fort of 80 men has food for 45 days. 15 days later reinforcements arrive leaving the number of days the food would last to 20 days. What was the strength of the reinforcement?
A) 60men
B) 50men
C) 40 men
D) 45men
OA is C
- by mitaliisrani
Thu Aug 26, 2010 5:50 am- Forum: Problem Solving
- Topic: Number of men???
- Replies: 9
- Views: 1847
Work problem ( tough one)
P, Q R individually can complete a piece of work in 8, 12, 24 days. P and R start working together, After 4 days, R quits is replaced by Q. In how many days is work completed
A) 1 3/5 days
B) 5 3/5 days
C) 4 2/5 days
D) 5 1/5 days
E) None of these
OA
B
- by mitaliisrani
Thu Aug 26, 2010 4:05 am- Forum: Problem Solving
- Topic: Work problem ( tough one)
- Replies: 4
- Views: 1171
Work problem
U and V can complete a job together in 30 hours, V and W can do it in 40 hours, and W and U can do it in 60 hours. In how many hours will W finish the work individually?
A) 90hrs
B) 120 hrs
C) 240 hrs
D) 180 hrs
E) None of these\
OA isC...can some 1 plz post approach
- by mitaliisrani
Thu Aug 26, 2010 3:11 am- Forum: Problem Solving
- Topic: Work problem
- Replies: 5
- Views: 1418
time speed dist
Boston is 4hr ahead of Frankfurt 2 hr behind India. X leaves Frankfurt at 6pm on Friday and reaches Boston the next day. After waiting there for 2hrs, he leaves exactly at noon and reaches India at 1 am. On his return journey he takes the same route as before, but halts at Boston for 1 hr less than ...
- by mitaliisrani
Mon Aug 23, 2010 9:58 am- Forum: Problem Solving
- Topic: time speed dist
- Replies: 2
- Views: 7908
volume of cone
A right circular cone has a height of 12 cm. If two cuts, parallel to the base, are made at a height of 2cm and 6cm from the base, find the ratio of the volumes of the three parts from top to bottom?
A) 27:98:91
B) 91:98:27
C) 98:91:23
D) 27:91:98
E) None of these
OA iA
- by mitaliisrani
Sat Aug 21, 2010 4:12 am- Forum: Problem Solving
- Topic: volume of cone
- Replies: 3
- Views: 9302
Plz solve( Radius of ball)
A spherical ball, when immersed in a cylinder of base radius 14cm, raises the level of water in the cylinder by 4cm. Find the radius of the ball in cm
A) cuberoot 588
B) cuberoot 147/2
C) Sqrt 94/7
D) cuberoot 147
E) Cannot be determined
Oa is A
- by mitaliisrani
Sat Aug 21, 2010 12:19 am- Forum: Problem Solving
- Topic: Plz solve( Radius of ball)
- Replies: 1
- Views: 958
Mensuration( geometry)
A wire bent in the form of a circle of radius 3cm is cut and bent in the form of a square. Find the ratio of the area of the circle to that of the square ?
A) 4:pi
B) pi:4
C) 2:pi
D) pi:2
E) None of these
OA is 1
- by mitaliisrani
Sat Aug 21, 2010 12:11 am- Forum: Problem Solving
- Topic: Mensuration( geometry)
- Replies: 1
- Views: 2027