The total cost of producing item X is equal to the sum of item X's fixed cost and variable cost. If the variable cost of producing X decreased by 5% in January, by what percent did the total cost of producing item X change in January? (1) The fixed cost of producing item X increased by 13% in...
Given that x4 – 25x2 = -144, which of the following is NOT a sum of two possible values of x? (A) -7 (B) -1 (C) 0 (D) 3 (E) 7
1.In june a baseball team that played 60 games had won 30% of its game played. After a phenomenal winning streak this team raised its average to 50% .How many games must the team have won in a row to attain this average? A:12 B:20 C:24 D:30 8. 2 hours after a freight train leaves Delhi a...
At a garage sale, all of the prices of the items sold were different. If the price of a radio sold at the garage sale was both the 15th highest price and the 20th lowest price among the prices of the items sold, how many items were sold at the garage sale? A. 33 B. 34 C. 35 D. 36 E. 37 ...
For the line whose equation is (y+2-b)/x=m +(2/x), m is not zero. If the line is rotated 90 degrees, then the slope of the line would be (A) 1/m (B) -1/m (C) m (D) -m (E) m-2 HAVE FUN! :D
1.The mean of a list of numbers is m and the deviation (not sure here) is n. It is known that 68% of the numbers are within m and n, what is the percentage of the numbers that are less (or more) than m+n? Reference key: 84%=68%+(100%-68%)/2 2.a, b, and c are integers and a < b < c. S...
The waiter at an expensive restaurent has noticed that 60% of the couples order dessert and coffee. however, 20% of the couples who order dessert doesnt order coffeee. what is the probability that the next couple the waiter seats will not order dessert?
In a certain survey, each of 800 people expressed their attitude to A and B. They can say yes, no or unsure. If 200 people said yes to A, but not to B, How many people said yes to either A or B?
There is one survey testing 60 people who taste the three different flavor icecreams – Vanilla(V), C(hocolate), S(trawberry). All the people do the survey and rank them , there are no situation that two flavor rank equally, 3/5 of people rank V worst. 1/10 of them(60 rank V ahead of C, 1/3 of them...
:D The points (p,q) and (p-2, q+c) are both on the line expressed by the equation y= 2x + 5. What is the value of c? (A) -4 (B) -1 (C) 1 (D) 2 (E) 4
In a certain laboratory, chemicals are identified by a color-coding system. There are 20 different chemicals. Each one is coded with either a single color or a unique two-color pair. If the order of colors in the pair doesn't matter, what is the minimum number of different colors needed to code all...
On a scale that measures the intensity of a certain phenomenon, a reading of n + 1 corresponds to an intensity that is 10 times the intensity corresponding to a reading of n. On that scale, the intensity corresponding to a reading of 8 is how many times as great as the intensity corresponding to a...
I have been trying to upload a graph and ask a relevant question about it, but NO SUCCESS! Can you please tell me how to upload a graph with a question?:hmm:
How many four digit numbers that are divisible by 4 can be formed using the digits 0 to 7 if no digit is to occur more than once in each number? (1) 520 (2) 370 (3) 345 (4) None
What is the units digit of 3^2007-2^2007?
In how many ways can four prizes each having 1st, 2nd , 3rd positions be given to 3 boys , if each boy is eligible to recieve more than one prize? (1) 12P3 (2) 36 * 36 (3) 64 (4) 12C4 *3!
A paint crew gets a rush order to paint 80 new houses in a new development . They paint the first y houses ata rate of x houses per week. Realizng taht they'll be late at this rate, they bring in some more painters and paint the rest of the houses at the rate of 1.25x houses per week. The total...
A committee of three people is to be chosen from four married couples. What is the number of different committees that can be chosen if two people who are married to each other cannot both serve on the committee? A) 16 B) 24 C) 26 D) 30 E) 32
Ken withdrew $200 in cash from the bank. Using the cash, he bought a book for exactly p dollars and a hat for exactly q dollars, where p and q are two-digit integers that have the same digits but in reverse order. Assuming no sales tax, each of the following could be the amount of cash, in dollars,...
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