搜索结果 | GMAT考满分，百万出国党的口碑之选。

GMAT考满分·题库

收录题目9362道

按指定内容搜索

搜索结果共2476条

来源	题目内容
Ready4	What is the value of $s^2-t^2$ ? (1) $(s+t)(s-t)=3$ (2) $s-t=1$
Ready4	On the circle above with center $O$ , the length of arc $PQR$ is $12 \pi$ . What is the circumference of the circle?
Ready4	Lyle puts balls numbered 1 through 75 into a bag with 75 other balls of the same size but without numbers. Min puts balls numbered 1 through 75 into a different bag with 125 other balls of the same size but without numbers. If Lyle and Min each select a ball at random from their respective bags, what is the probability that the 2 balls selected will have numbers that are the same?
Ready4	In a group of $250$ female athletes, $50$ of them are given jerseys with numbers from $1$ to $50$ . In a group of $200$ male athletes, $50$ of them are also given jerseys with numbers from $1$ to $50$ . If one female athlete and one male athlete will be selected at random, what is the probability that both selected athletes will have jerseys with the same number?
Ready4	A deck of 52 red cards contain 26 blank cards and 26 cards each with a letter from A to Z. A deck of 65 blue cards contain 39 blank cards and 26 cards each with a letter from A to Z. If one red card and one blue card are selected at random, what is the probability that both cards will have the same letter?
Ready4	Each of the $50$ ice pops in a box is red, purple, or orange. Cherry and strawberry flavored ice pops are red, grape flavored ice pops are purple, and orange flavored ice pops are orange. If one ice pop is selected at random from the box, what is the probability that the selected ice pop will be grape flavored or orange flavored? (1) The probability that the ice pop will be purple is $0.24$ . (2) The probability that the ice pop will be red is $0.64$ .
Ready4	Each of the $100$ picture frames in a shipment has one, two, or three hooks. All picture frames with one hook are brown. All picture frames with two or three hooks are black. If one picture frame is selected at random from the shipment, what is the probability that the selected picture frame will have either one or two hooks? (1) The probability the picture frame will be brown plus the probability the picture frame will have two hooks is $0.65$ . (2) The probability the picture frame will be brown minus the probability the picture frame will have two hooks is $0.35$ .
Ready4	A box contains $40$ flags that are green, orange, red, or yellow. Each red flag and each yellow flag has a star on it. If one flag is selected at random from the box, what is the probability the selected flag will either be green or have a star on it? (1) The probability the flag will be green is $0.2$ . (2) The probability the flag will be red or yellow is $0.25$ .
Ready4	Each of the $20$ tags in a bag has a picture of an animal or a fruit and is either white, pink, or gray. If one tag is to be selected at random from the bag, what is the probability the tag selected will either have a picture of a fruit or be pink? (1) The probability the tag will have a picture of a fruit minus the probability the tag will be pink is $0.3$ . (2) The probability the tag will both have a picture of a fruit and be pink is $0$ .
Ready4	A box contains $60$ baseball caps. Each cap is either yellow or blue and has a letter from $\text{A}$ to $\text{Z}$ on it. If one cap is to be selected at random from the box, what is the probability that the cap selected will either be yellow or have the letter $\text{D}$ on it? (1) The probability the cap will be yellow plus the probability the cap will have the letter $\text{D}$ on it is $0.75$ . (2) The probability the cap will both be yellow and have the letter $\text{D}$ on it is $0$ .
Ready4	If $q$ and $s$ are integers, is $q(s+1)$ even? (1) $q+1$ is odd. (2) $s+1$ is even.
Ready4	If $k$ and $n$ are integers, is $k(n-1)$ odd? (1) $k$ is odd. (2) $n$ is odd.
Ready4	If $x$ and $y$ are integers, is $x(x+y)$ even? (1) $x$ is even. (2) $x+y$ is even.
Ready4	On the number line above, is the product of $q$ and $t$ positive? (1) The product of $q$ and $r$ is negative. (2) The product of $s$ and $t$ is positive.
Ready4	On the number line above, is the product of $a$ , $b$ , $c$ , and $d$ positive? (1) $b$ is negative. (2) $c$ is positive.
Ready4	On the number line above, is the sum of $p$ and $q$ negative? (1) $p$ is negative. (2) $q$ is negative.
Ready4	If $n$ is an integer and $4<n<10$ , what is the value of $n$ ? (1) $n$ is a factor of $32$ . (2) $n$ is a factor of $24$ .
Ready4	If $z$ is an integer and $6 < z<12$ , what is the value of $z$ ? (1) $z$ is a factor of $45$ . (2) $z$ is a factor of $36$ .
Ready4	If $p$ is an integer and $3 < p < 9$ , what is the value of $p$ ? (1) $p$ is a factor of 20. (2) $p$ is a factor of 25.
Ready4	How many different prime numbers are factors of the integer $n^2$ ? (1) Two different prime numbers are factors of $n$ . (2) Three different prime numbers are factors of $3n$ .