Search found 10 matches
Thor just filled his truck's gas tank with 20 gallons of a m
Thor just filled his truck's gas tank with 20 gallons of a mixture consisting of 10% additive and 90% gasoline. If his truck runs best on a mixture consisting of 20% additive and 80% gasoline, how many gallons of additive must he add into the gas tank for his truck to achieve optimum performance? a)...
- by DivyaD
Fri Jan 18, 2019 4:24 am- Forum: GMAT Math
- Topic: Thor just filled his truck's gas tank with 20 gallons of a m
- Replies: 3
- Views: 1918
- by DivyaD
Fri Jan 18, 2019 4:21 am- Forum: GMAT Math
- Topic: Does (a – 2)(b + 4) = 8?
- Replies: 2
- Views: 1716
Each number in each of lists L and M above is positive.
List L: r, s, t, u, v List M: w, x, y, z Each number in each of lists L and M above is positive. The ratio of the average (arithmetic mean) of the numbers in list L to the average of the numbers in list M is 3 to 7. What is the ratio of the average of all the numbers in both lists L and M to the ave...
- by DivyaD
Fri Jan 18, 2019 4:20 am- Forum: GMAT Math
- Topic: Each number in each of lists L and M above is positive.
- Replies: 2
- Views: 1821
If x is an integer greater than 2, the function f(x)
If x is an integer greater than 2, the function f(x) represents the product of all even integers between 2 and x, inclusive. What is f(51) –f(50)?
a) (51)50!
b) (502)49!
c) 50
d) 1
e) 0
- by DivyaD
Fri Jan 18, 2019 4:17 am- Forum: GMAT Math
- Topic: If x is an integer greater than 2, the function f(x)
- Replies: 5
- Views: 13134
If x and y are consecutive integers such that x < y and x
If x and y are consecutive integers such that x < y and x is odd, which of the following must be true?
I. xy – y is odd.
II. x(x + y) is even.
III. x2 + y2 is odd.
a) None
b) III only
c) I and II
d) I and III
e) II and III
- by DivyaD
Fri Jan 18, 2019 4:14 am- Forum: GMAT Math
- Topic: If x and y are consecutive integers such that x < y and x
- Replies: 3
- Views: 1789
A fair die has sides labeled with 1, 2, 3, 4, 5, and 6 dots.
A fair die has sides labeled with 1, 2, 3, 4, 5, and 6 dots. If the die is rolled 4 times, what is the probability that on at least one roll, the die will show a 6?
a) $$\frac{1}{6}$$
b) $$\frac{625}{1296}$$
c) $$\frac{649}{1296}$$
c) $$\frac{671}{1296}$$
d) $$\frac{2}{3}$$
- by DivyaD
Fri Jan 18, 2019 4:11 am- Forum: GMAT Math
- Topic: A fair die has sides labeled with 1, 2, 3, 4, 5, and 6 dots.
- Replies: 2
- Views: 1651
If $$\sqrt{x}\ $$ and $$\sqrt{y}$$ are nonzero
If $$\sqrt{x}\ $$ and $$\sqrt{y}$$ are nonzero integers, what is the remainder when x is divided by y?
(1) $$\sqrt{x}\ -\ \sqrt{y}$$ = 1
(2) x–y is a positive integer.
- by DivyaD
Fri Jan 18, 2019 4:07 am- Forum: GMAT Math
- Topic: If $$\sqrt{x}\ $$ and $$\sqrt{y}$$ are nonzero
- Replies: 2
- Views: 1624
A certain furniture store must choose between trucking
A certain furniture store must choose between trucking companies A and B for its local deliveries. If company A charges per delivery, and company B charges per week plus a mileage charge, which company would cost the store less? (1) Company A charges $45 per delivery and company B charges $600 per w...
- by DivyaD
Fri Jan 18, 2019 4:02 am- Forum: GMAT Math
- Topic: A certain furniture store must choose between trucking
- Replies: 2
- Views: 2404
What is the average (arithmetic mean) of x, y, and z?
What is the average (arithmetic mean) of x, y, and z?
(1) —x − 4y + 3z = 14
(2) 5x + 8y + z = 26
- by DivyaD
Fri Jan 18, 2019 4:00 am- Forum: GMAT Math
- Topic: What is the average (arithmetic mean) of x, y, and z?
- Replies: 3
- Views: 2245