GMAT考满分·题库

搜索

收录题目9362道

搜索结果共4976条

来源 题目内容
PREP07 Test 1 Three grades of milk are 1 percent, 2 percent, and 3 percent fat by volume. If x gallons of the 1 percent grade, y gallons of the 2 percent grade, and z gallons of the 3 percent grade are mixed to give x + y + z gallons of a 1.5 percent grade, what is x in terms of y and z ?
If 4x + 3y = -2 and 3x + 6 = 0, what is the value of y?
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022 The present ratio of students to teachers at a certain school is 30 to 1. If the student enrollment were to increase by 50 students and the number of teachers were to increase by 5, the ratio of students to teachers would then be 25 to 1. What is the present number of teachers?
Manhattan Joe needs to paint all the airplane hangars at the airport, so he buys 360 gallons of paint to do the job. During the first week, he uses 1/4 of all the paint. During the second week, he uses 1/5 of the remaining paint. How many gallons of paint has Joe used?
Ready4

Don has  coins, which is 4 times as many as Bob and  as many as Candace. How many more coins do Bob and Candace have together than Don does, in terms of ?
If the integer n has exactly three positive divisors including, 1 and n, how many positive divisors does $${n}^{2}$$ have
300难题 If there is a least integer that satisfies the inequality$$\frac{9}{x} \geq 2$$,what is that least integer?
181215 There are 20 cars in a taxi company. The number of blue cars is larger than 10. The rest are red and green cars. How many are there in green? 1: The number of green cars is five times that of red cars. 2: There are 6 green cars and red cars in total.
Ready4

What is the smallest positive integer that is divisible by every odd integer between 1 and 10, inclusive?
If x and y are positive integers and 1 + x + y + xy = 15, what is the value of x + y?
PREP07 Test 2 If $$(2^x)(3^y) = 288$$, where x and y are positive integers, then $$(2^{x - 1})(3^{y - 2})$$=
190415 In the sequence {$$a_n$$}, $$a_1$$=3,$$a_2$$=5,$$a_n$$=$$a_{n-1}$$+$$a_{n-2}$$(n≥3).$$\frac{a_24}{a_20}$$=?
PREP07 Test 1 If a = 1 and b = -2, then (2$${a}^{2}$$ + b)(x + y) + (a + b)(x - y) =
Ready4

A store received a shipment of a particular item at the beginning of the week.

of the items sold the first day,

of the items sold the second day, and

of the items sold the third day.

There are 7 units remaining from the shipment. How many total items were in the shipment?
The building with the greatest mean height per floor has a roof height between meters.There is a correlation between the number of floors and the mean height per floor.
Median carbon dioxide emissions for the 9 countries increased by million metric tons 2000 to 2009.In 2006,the range of carbon dioxide emissions for the 9 countries was approximately million metric tons.
ABC Cars and XYZ Automotive accounted for half of all used-car sales in City Z for 2010.In June 2010, the two used-car dealers that are not specified on the graph sold a total of exactly cars.
Ready4

If is an integer, then what is the least possible value of ?
OG19-数学分册 Last week Jack worked 70 hours and earned $1,260. If he earned his regular hourly wage for the first 40 hours worked, $$1\frac{1}{2}$$ times his regular hourly wage for the next 20 hours worked, and 2 times his regular hourly wage for the remaining 10 hours worked, what was his regular hourly wage?
Ready4

If  is an integer and , which of the following CANNOT be a divisor of ?