What is the probability of drawing 2 red cards randomly out of a standard deck of 52 cards?
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A club of 12 people elects a president, a vice-president, and a treasurer. If no member may hold more than one job, how many different combinations of president, vice-president, and treasurer can be elected?
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Jamal is a good bowler! His scores on 3 games were 175, 180 and 195. What should Jamal's score be on his fourth game if he wants an average of 185 for four games?
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A combination lock has a combination consisting of 3 numbers. The dial of the lock contains the numbers 9 to 99. There are no repeated numbers in the combination. How many different combinations are possible?
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In a group of 60 people, 40 have black hair and 46 have brown eyes. If 6 people have neither black hair nor brown eyes, how many people have both black hair and brown eyes?