## 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:
**1403**

- by DivyaD

Fri Jan 18, 2019 4:21 am- Forum: GMAT Math
- Topic: Does (a â€“ 2)(b + 4) = 8?
- Replies:
**2** - Views:
**1140**

##### 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:
**1210**

##### 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) â€“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:
**5654**

##### 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 â€“ 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:
**1245**

##### 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:
**1165**

##### 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) xâ€“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:
**1088**

##### 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:
**1762**

##### What is the average (arithmetic mean) of x, y, and z?

What is the average (arithmetic mean) of x, y, and z?

(1) â€”x âˆ’ 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:
**1659**