Search found 32 matches
answer D the sprinter covers distance r/2 in 30,60,120,240,480..... i.e. time doubling for every next r/2 distance one round =4*(r/2) so ratio of time taken for second round to time taken for first round run is (16+32+64+128)/(1+2+4+8) =16 Sameer - How did you arrive at the one below ?? (16+32+64+1...
- by govind_raj_76
Mon May 10, 2010 7:11 pm- Forum: Problem Solving
- Topic: sprinter starts running
- Replies: 8
- Views: 4530
Probability
A baseball team consists of 20 players, 5 of whom are pitchers and 15 of whom are position players. If the batting order consists of 8 different positions and 1 pitcher, and if the pitcher always bats in the last order, which of the following different batting orders for this baseball team ?? A) [(1...
- by govind_raj_76
Sun May 09, 2010 11:47 am- Forum: Problem Solving
- Topic: Probability
- Replies: 2
- Views: 1133
Work problem
Jane and Ashley take 20 days and 40 days respectively to complete a project when they work on it alone. They thought if they worked on the project together, they would take fewer days to complete it. During the period that they were working together, Jane took an eight day leave from work. This lead...
- by govind_raj_76
Sun May 09, 2010 11:43 am- Forum: Problem Solving
- Topic: Work problem
- Replies: 1
- Views: 903
Please Explain
There were 5 rats in 5 cages and each of the rats had 1 of 5 identical biscuits. Each of the rats ate some portion of its respective biscuit. How many rats ate more than half of the biscuits ? 1) The quantities eaten bt the five rats were in the ratio 1: 2 : 3: 4: 5 2) The total quantity of biscuits...
- by govind_raj_76
Sun May 09, 2010 11:39 am- Forum: Data Sufficiency
- Topic: Please Explain
- Replies: 2
- Views: 948
Explaination needed
AB,BC and CA are the sides of the Traingle ABC, Is Triangle ABC a right angle ? 1) AB:BC = 2:3 2) BC:CA = 4:5 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER ...
- by govind_raj_76
Sun May 09, 2010 11:34 am- Forum: Data Sufficiency
- Topic: Explaination needed
- Replies: 1
- Views: 947
How many 4 digit numbers that are divisible by 2 can be formed so that only the two rightmost digits are even and the digit 0 cannnot appear more than once ? A) 300 B) 400 C) 500 D) 600 E) 700 Please explain the best approach to solve this problem ? Thanks, i got D-600, reasoning if i got the probl...
- by govind_raj_76
Thu May 06, 2010 6:31 pm- Forum: Problem Solving
- Topic: Perm / Combi
- Replies: 6
- Views: 1252
Perm & Comb
If 6(power)m divides 25 !, then what is the largest value of m ?
A) 5
B) 8
C) 10
D) 22
E) 26
Please explain the best approach to solve this problem ?
Thanks,
- by govind_raj_76
Sun May 02, 2010 11:42 am- Forum: Problem Solving
- Topic: Perm & Comb
- Replies: 1
- Views: 990
Perm / Combi
How many 4 digit numbers that are divisible by 2 can be formed so that only the two rightmost digits are even and the digit 0 cannnot appear more than once ?
A) 300
B) 400
C) 500
D) 600
E) 700
Please explain the best approach to solve this problem ?
Thanks,
- by govind_raj_76
Sun May 02, 2010 11:32 am- Forum: Problem Solving
- Topic: Perm / Combi
- Replies: 6
- Views: 1252
Digits Repeated.
How many numbers from 1 to 1000, both inclusive, have digits repeated ?
A) 9
B) 81
C) 262
D) 648
E) 738
Please explain the concept behind this and how to solve this problem ?
Thanks,
- by govind_raj_76
Sun May 02, 2010 11:21 am- Forum: Problem Solving
- Topic: Digits Repeated.
- Replies: 1
- Views: 1009
PS
How many four-digit numbers, that are divisible 5, are there that do not contain the digits 4 or 8 and none of the digits are repeated ?
A) 390
B) 360
C) 330
D) 310
E) 180
- by govind_raj_76
Sun May 02, 2010 11:08 am- Forum: Problem Solving
- Topic: PS
- Replies: 1
- Views: 948
What about 24 and 20 ? a) with 24 2x+y=50, x=24,x=24, y=2 Even 24,24 and 2 is not possible right ?? also if y=24, x,x, 24 means x=13: is not possible b'cos sum of length of any 2 sides of a traingle must be greater than length 3rd side. 24 +13 greater than 13. 13+13 NOT greater than 24. Even in this...
- by govind_raj_76
Sat Apr 24, 2010 2:27 pm- Forum: Problem Solving
- Topic: perimeter ?
- Replies: 8
- Views: 1661
perimeter ?
If the perimeter of an isosceles triangle is 50. Which of the following CANNOT be the length of a side of the traiangle ?
a) 15
b) 18
c) 20
d) 24
e) 26
Please let me know how to solve this ?
- by govind_raj_76
Sat Apr 24, 2010 10:11 am- Forum: Problem Solving
- Topic: perimeter ?
- Replies: 8
- Views: 1661
As per Becky, she has said it is a negative slope ---------------------------------------------------------------- 2. Just saying it passes through the third quadrant dosn't give us any information about the slope or any points - insufficient. If we put the two facts together we now know that our li...
- by govind_raj_76
Sat Apr 24, 2010 9:20 am- Forum: Problem Solving
- Topic: Co-ordinate Geomentry
- Replies: 15
- Views: 3226
I have the same issue as frank.
By the way isn't it
y=(4x/3)-5/3?
please explain how the slope comes to y=4/3x- 5 ?
Thanks,
- by govind_raj_76
Sat Apr 24, 2010 6:40 am- Forum: Problem Solving
- Topic: Co-ordinate Geomentry
- Replies: 15
- Views: 3226
I was able to see the diagram and found a way to download. For some reason, it is downloading as .php extension, I changed the files to be a .doc extension. I was able to decipher the answers. Thanks everone.
- by govind_raj_76
Sat Apr 24, 2010 5:56 am- Forum: Problem Solving
- Topic: Cutting Board
- Replies: 11
- Views: 6151