Vertices of a quadrilateral ABCD are A(1,1), B(5,6), C(10,10) and D(6,5). What is the shape of the quadrilateral? A. Square B. Rectangle but not a square C. Rhombus D. Parallelogram but not a rhombus E. None of these

Eighty percent of the lights at Hotel California are on at 8 p.m. a certain evening. However, forty percent of the lights that are supposed to be off are actually on and ten percent of the lights that are supposed to be on are actually off. What percent of the lights that are on are supposed to be off?

At a certain health club, 30% of the members use both the pool and the sauna, but 40% of the members who use the pool, do not use the sauna. Wat percent of the members use the pool? A. 33.33% B. 40% C. 50% D. 62.5% E. 75%

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What is the accurate rate for a certain disease testing? 1). 96% of the positive results are true, and 90% of the negative results are true. 2). 8% of all people for the testing actually suffered the disease.

Kelly used to get a 30% discount on movie tickets. When the price of the movie ticket increased by 50%, the amount of discount in dollars remained the same. What is Kelly’s discount with the new Ticket price in percent terms? a) 10% b) 20% c) 25% d) 35% e) 38%

Is rs=rx-2 ? a) r is an odd number b) x=s+2

A certain roller coaster has 3 cars, and a passenger is equally likely to ride in any 1 of the 3 cars each time that passenger rides the roller coaster. If a certain passenger is to ride the roller coaster 3 times, what is the probability that the passenger will ride in each of the [...]

Is a + b + c=0 ? 1). (a + b + c)2=0 2). a2+b2+c2=0

In the formula w = p/(v)^1/t , integers p and t are positive constants. If w =2 when v = 1 and if w=1/2 when v = 64, then t = (A) 1 (B) 2 (C) 3 (D) 4 (E) 16 Ans: 3 ..Please provide explanation if you solve it.

2 people are to be selected from 10 people, which include male and female. Is the probability that both them female greater than 1/2? 1) The number of females is greater than 5 2) The probability that both them are male is less than 1/10 A) Statement 1 alone is sufficient but statement 2 alone [...]

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A certain basketball team that has played 2/3 of its games has a record of 17 wins and 3 losses. What is the greatest number of the remaining games that the team can lose and still win at least 3/4 of all of its games? (A) 7 (B) 6 (C) 5 (D) 4 (E) 3

In 1979 approximately 1/3 of the 37.3 million airline passengers traveling to or from the United States used Kennedy Airport. If the number of such passengers that used Miami Airport was 1/2 the number that used Kennedy Airport and 4 times the number that used Logan Airport, approximately how many millions of these passengers used [...]