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全部 猴哥难题 150真题 OG magoosh Kaplan 精选真题
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【数学 magoosh-45】
150人已做
73%正确率
If four numbers are randomly selected without replacement from set {1, 2, 3, 4}, what is the probability that the four numbers are selected in ascending order?
【数学 magoosh-46】
156人已做
74%正确率
Each circle has center O. The radius of the smaller circle is 2 and the radius of the larger circle is 6. If a point is selected at random from the larger circular region, what is the probability that the point will lie in the shaded region?
【数学 magoosh-47】
162人已做
49%正确率
Set A: {1, 3, 4, 6, 9, 12, 15} If three numbers are randomly selected from set A without replacement, what is the probability that the sum of the three numbers is divisible by 3?
【数学 magoosh-48】
168人已做
50%正确率
A box contains 4 red chips and 2 blue chips. If two chips are selected at random without replacement, what is the probability that the chips are different colors?
【数学 magoosh-49】
174人已做
51%正确率
A bag contains x blue chips and y red chips. If the probability of selecting a red chip at random is 3/7, then x/y = ?
【数学 magoosh-50】
150人已做
30%正确率
If points A and B are randomly placed on the circumference of a circle with radius 2, what is the probability that the length of chord AB is greater than 2?
【数学 magoosh-51】
156人已做
31%正确率
The probability is 0.6 that an “unfair” coin will turn up tails on any given toss. If the coin is tossed 3 times, what is the probability that at least one of the tosses will turn up tails?
【数学 magoosh-52】
162人已做
32%正确率
A box contains 10 balls numbered from 1 to 10 inclusive. If Ann removes a ball at random and replaces it, and then Jane removes a ball at random, what is the probability that both women removed the same ball?
【数学 magoosh-53】
168人已做
33%正确率
A box contains 10 pairs of shoes (20 shoes in total). If two shoes are selected at random, what is the probability that they are matching shoes?
【数学 magoosh-54】
174人已做
36%正确率
If one number is selected at random from set A, and one number is selected at random from set B, what is the probability that both numbers are prime?
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