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191031
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A number can be divided y 2 ^ 7 * 3 ^ 2 * 5 ^ 4 and 3 ^ 4 * 5 ^ 7 * 11 * 13 at the same time. How many common divisors other than 1 such number has at most ?
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200301
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A sequence 1,2,3,4,5,11, x, and x is a positive integer, is x≥4?
(1). The median of the sequence is 4
(2). x ≥ the median of the sequence
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200301
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Is 5 a factor of n?
(1)the remainder is 1 when n is divided by 4
(2)the remainder is 4 when n is divided by 7
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190215
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What is the reminder of x when divided by 2?
1: The reminder of (x+1) is odd when divided by 2.
2: 4 is a factor of $$x^{4}$$.
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190215
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xy is the square of an integer. Is x the square of an integer?
1: $$y^{\frac{1}{4}}$$ is an integer.
2: $$(xy)^{\frac{1}{4}}$$ is an integer.
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190113
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When positive integer is divided by 4, is the remainder 1?
(1)The remainder is 1, when $$p^{2}$$ is divided by 4.
(2)The remainder is 1 when P is divided by 2.
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If x is equal to one of the numbers $$\frac1 4$$, $$\frac3 8$$ or $$\frac2 5$$what is the value of x ?(1)$$\frac1 4<{x}<\frac1 2$$(2)$$\frac1 3<{x}<\frac3 5$$
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p is an integer; n is an integer; and $$\frac p n$$ is an integer. Is $$\frac p n$$ odd?(1)p is divisible by 4.(2)n is divisible by 4.
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Is x between 0 and 1 ?(1) x is between $$-\frac{1}{2}$$ and$$\frac{3}{2}$$(2) $$\frac{3}{4}$$ is $$\frac{1}{4}$$ more than x
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PREP07 Test 2
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If k is a positive integer, is k the square of an integer?(1) k is divisible by 4.(2) k is divisible by exactly 4 different prime numbers.
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Magoosh
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A container holds 4 quarts of alcohol and 4 quarts of water. How many quarts of water must be added to the container to create a mixture that is 3 parts alcohol to 5 parts water by volume?
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Magoosh
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The ratio of two positive numbers is 3 to 4. If k is added to each number the new ratio will be 4 to 5, and the sum of the numbers will be 117. What is the value of k?
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PREP07 Test 1
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If the operation △ is one of the four arithmetic operations addition, subtraction, multiplication, and division, is (6 △ 2) △ 4 = 6 △ (2 △ 4) ?(1) 3 △ 2 > 3(2) 3 △ 1 = 3
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PREP07 Test 1
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Is x between 0 and 1 ?(1) x is between $$-\frac{1}{2}$$ and $$\frac{3}{2}$$(2)$$\frac{3}{4}$$ is $$\frac{1}{4}$$ more than x.
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PREP07 Test 1
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A certain company has 18 equally qualified applicants for 4 open positions. How many different groups of 4 applicants can be chosen by the company to fill the positions if the order of selection does not matter?
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OG18-定量推理
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If m and n are positive integers, is m+n divisible by 4?(1) m and n are each divisible by 2.(2) Neither m nor n is divisible by 4.
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OG18-定量推理
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What is the ratio of c to d?(1) The ratio of 3c to 3d is 3 to 4.(2) The ratio of c +3 to d + 3 is 4 to 5
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OG19-定量推理
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What is the ratio of c to d?
(1) The ratio of 3c to 3d is 3 to 4.
(2) The ratio of $$c + 3$$ to $$d + 3$$ is 4 to 5.
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OG19-定量推理
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If m and n are positive integers, ism+ n divisible by 4?
(1) m and n are each divisible by 2.
(2) Neither m nor n is divisible by 4.
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OG19-定量推理
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The infinite sequence $$a_1$$, $$a_2$$, ... , $$a_n$$, ... is such that $$a_1 = 2$$, $$a_2 = -3$$, $$a_3 = 5$$, $$a_4 = -1$$, and $$a_n = a_{n-4}$$ for n > 4. What is the sum of the first 97 terms of the sequence?
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