## Search found 94 matches

In a set of three variables, the average of the first two variables is greater than 2, the average of the last two variables is great than or equal to 3 , the average of the first and third variable is 4.Which of the following could be the average of the three variables? A)1 B)1.5 C)2 D)3 E)3.5 How...

- by mbawisdom

Wed Mar 07, 2018 3:09 pm- Forum: Problem Solving
- Topic: In a set of three variables, the average of the first
- Replies:
**2** - Views:
**738**

Steve traveled the first 2 hours of his journey at 40 mph and the remaining 3 hours of his journey at 80 mph. What is his average speed for the entire journey? A. 60 mph B. 56.67 mph C. 53.33 mph D. 64 mph E. 66.67 mph The OA is D . I'm confused by this PS question. Experts, any suggestion, please?...

- by mbawisdom

Wed Mar 07, 2018 2:57 pm- Forum: Problem Solving
- Topic: Steve traveled the first 2 hours of his journey...
- Replies:
**4** - Views:
**1519**

Last year a certain bond yielded 5 percent of its face value in interest. If that interest was approximately 4 percent of the bond's selling price of $7,500, what is the bond's face value? A. $6,000 B. $6,750 C. $7,425 D. $7,500 E. $9,375 The OA is A . Please, can any expert explain this PS questio...

- by mbawisdom

Wed Mar 07, 2018 11:02 am- Forum: Problem Solving
- Topic: Last year a certain bond yielded 5 percent of its face...
- Replies:
**3** - Views:
**972**

A draining pipe can empty a pool in 4 hours. On a rainy day, when the pool is full, the draining pipe is opened and the pool is emptied in 6 hours. If rain inflow into the pool is 3 liters per hour, what is the capacity of the pool? A. 9 liters B. 18 liters C. 27 liters D. 36 liters E. 45 liters OA...

- by mbawisdom

Wed Mar 07, 2018 7:35 am- Forum: Problem Solving
- Topic: A draining pipe can empty a pool in 4 hours
- Replies:
**4** - Views:
**2616**

Which of the following fractions is greater than 1/4? A. 12/50 B. 3/11 C. 2/9 D. 4/17 E. 6/24 The OA is B . Is there a quick and strategic approach to solve this question? Can any experts help, please? I try to solve as follows: A. 12/50 12.5/50 = 1/4 thus 12/50 < 1/4 B. 3/11 3/12 = 1/4 thus 3/11 >...

- by mbawisdom

Wed Mar 07, 2018 7:25 am- Forum: Problem Solving
- Topic: Which of the following fractions is greater than 1/4?
- Replies:
**5** - Views:
**1600**

For how many integer values of m is x < m < y ? (1) x and y are positive integers (2) y â€“ x = 6 Which of the statements is sufficient? OA C (1) not sufficient as we do not know the actual values of x and y, or its span. If x and y were 1 and 3, m could only be 2 [1 INTEGER], but if x and y were 1...

- by mbawisdom

Tue Mar 06, 2018 4:27 pm- Forum: Data Sufficiency
- Topic: For how many integer values of m is x < m < y
- Replies:
**2** - Views:
**978**

What is the remainder when 2^20 is divided by 10 ? A. 0 B. 2 C. 4 D. 6 E. 8 Can some experts show me how to solve this problem? OA D The remainder when divided by 10 is the same as asking what is the units digit. I know 2^10 = 1024 (you should memorise every power of 2 up to 10 --> it will speed yo...

- by mbawisdom

Tue Mar 06, 2018 3:30 pm- Forum: Problem Solving
- Topic: What is the remainder when 2^20 is divided by 10
- Replies:
**2** - Views:
**2530**

An airplane displays trip information to passengers in two way: how much time is left in the flight, and what percentage of the trip duration has been completed. When Curtis first checks the display, the clock reads 5:50, meaning that there are 5 hours and 50 minutes left for the trip, and the disp...

- by mbawisdom

Tue Mar 06, 2018 3:23 pm- Forum: Problem Solving
- Topic: An airplane displays trip information to passengers in two..
- Replies:
**2** - Views:
**749**

(x^3 - 2x^2 + x - 2) (x-2)(x^2 + 1) (x)(x-1)(x-1)((x-2)(x^2 + 1) one of a, b,c,d,e, or f = 0. therefore abcdef = 0. Answer is A. Thanks for your reply, but i have one or two doubts:- 1. How you factor out (x-2) from (x^3 - 2x^2 + x - 2) 2. (x)(x-1)(x-1)((x-2)(x^2 + 1). This gives a,b,c,d,e. "f...

- by mbawisdom

Tue Mar 06, 2018 2:56 pm- Forum: Problem Solving
- Topic: If (x^3 - 2x^2 + x - 1)^2 - 1=(x - a) (x - b) (x - c) (x - d
- Replies:
**9** - Views:
**1495**

(x^3 - 2x^2 + x - 2) (x-2)(x^2 + 1) (x)(x-1)(x-1)((x-2)(x^2 + 1) one of a, b,c,d,e, or f = 0. therefore abcdef = 0. Answer is A. Thanks for your reply, but i have one or two doubts:- 1. How you factor out (x-2) from (x^3 - 2x^2 + x - 2) 2. (x)(x-1)(x-1)((x-2)(x^2 + 1). This gives a,b,c,d,e. "f...

- by mbawisdom

Tue Mar 06, 2018 2:56 pm- Forum: Problem Solving
- Topic: If (x^3 - 2x^2 + x - 1)^2 - 1=(x - a) (x - b) (x - c) (x - d
- Replies:
**9** - Views:
**1495**

##### sss

The number of people present at each level, except the topmost, of a pyramid is twice the number present just one level above. Whatâ€™s the probability that Mr. X and Mr. Y, standing somewhere on the pyramid, are fewer than three levels apart? (1) The pyramid has 5 levels. (2) There are fewer than ...

- by mbawisdom

Tue Mar 06, 2018 2:26 pm- Forum: Data Sufficiency
- Topic: The number of people present at each level, except the topmo
- Replies:
**1** - Views:
**693**

How many pages does today's newspaper consist of? (1) Yesterday's paper and today's papers have a total of 66 pages. (2) Yesterday's paper has three fewer pages than twice today's paper. The OA is C . I don't know how can I use both statements to get an answer. Experts, can you help me? Please. <i ...

- by mbawisdom

Tue Mar 06, 2018 11:27 am- Forum: Data Sufficiency
- Topic: How many pages does todays newspaper consist of?
- Replies:
**1** - Views:
**652**

What is the least possible product of 4 different integers, each of which has a value between â€“5 and 10, inclusive? (A) â€“5040 (B) â€“3600 (C) â€“720 (D) â€“600 (E) â€“120 [spoiler]OA=B[/spoiler]. Hello, I have this doubt, how can I determine the correct option? Why are all the answers negative?...

- by mbawisdom

Tue Mar 06, 2018 11:08 am- Forum: Problem Solving
- Topic: What is the least possible product of 4 different . . .
- Replies:
**3** - Views:
**2572**

If b is greater than 1, which of the following must be negative? A. (2 - b)(b - 1) B. (b - 1)/3b C. (1 - b)^2 D. (2 - b)/(1 - b) E. (1 - b^2)/b [spoiler]OA=E[/spoiler]. How can I discard the rest of the options? Experts, can you give me some help? <i class="em em-pray"></i> Lets look at e...

- by mbawisdom

Tue Mar 06, 2018 9:06 am- Forum: Problem Solving
- Topic: If b is greater than 1, which of the following must
- Replies:
**3** - Views:
**879**

Telephone Company X's monthly charge for long-distance telephone calls is $1.95 plus $0.10 per minute, whereas Telephone Company Y's monthly charge is $5.95 plus $0.08 per minute. For what total number of minutes of long-distance calls per month would the monthly charge for the two companies be the...

- by mbawisdom

Tue Mar 06, 2018 8:33 am- Forum: Problem Solving
- Topic: Telephone Company X's monthly charge for long-distance telep
- Replies:
**5** - Views:
**963**