CAT Coins and Weights Questions

Practice Coins and Weights questions for CAT with detailed video and text solutions. Questions from Coins and Weights though not consistent in the CAT but the concepts are still important for all the mba entrance exams. Practice questions from CAT Previous Papers to get a fare understanding of the type of questions being asked in the exam across the years. These type of questions also appear in various other entrance exams such as NMAT etc. Practice becomes the sole key for mastering questions from these topic and hence we request the students to make the best use of our resources.

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CAT Coins and Weights Questions

Instructions

DIRECTIONS for the following two questions: These questions are based on the situation given below: Ten coins are distributed among four people P, Q, R, S such that one of them gets one coin, another gets two coins, the third gets three coins and the fourth gets four coins. It is known that Q gets more coins than P, and S gets fewer coins than R.

Question 1

If the number of coins distributed to Q is twice the number distributed to P then which one of the following is necessarily true?

R gets an even number of coins.

R gets an odd number of coins.

S gets an even number of coins.

S gets an odd number of coins.

Instructions

Question 2

If R gets at least two more coins than S, then which one of the following is necessarily true?

Q gets at least two more coins than S.

Q gets more coins than P.

P gets more coins than S.

P and Q together get at least five coins.

Instructions

Question 3

If Q gets fewer coins than R, then which one of the following is not necessarily true?

P and Q together get at least four coins.

Q and S together get at least four coins.

R and S together get at least five coins.

P and R together get at least five coins.

Instructions

Direction for the following three questions: Answer the questions based on the following information. A, B, C and D collected one-rupee coins following the given pattern. Together they collected 100 coins. Each one of them collected even number of coins. Each one of them collected at least 10 coins. No two of them collected the same number of coins.

Question 1

The maximum number of coins collected by any one of them cannot exceed

None of these

Instructions

Question 2

If A collected 54 coins, then the difference in the number of coins between the one who collected maximum number of coins and the one who collected the second highest number of coins must be at least

None of these

Instructions

Question 3

If A collected 54 coins and B collected two more coins than twice the number of coins collected by C, then the number of coins collected by B could be

Instructions

In a game played by two people there were initially N match sticks kept on the table. A move in the game consists of a player removing either one or two matchsticks from the table. The one who takes the last matchstick loses. Players make moves alternately. The player who will make the first move is A. The other player is B.

Question 1

The largest of N (less than 50) that ensures a win for B is

Solution

When total matchstick is 1, B will surely win as A is the one who is picking up matchstick first.

When total matchstick is 2, A will surely win as A will pick one matchstick then B has to pick last one.

When total matchstick is 3, A will surely win as he takes up a strategy so that B will have last matchstick to pick up. So A will pick 2 matchstick.

When total matchstick is 4, B will surely win as if A picks up one matchstick, remaining matchsticks will be 3 and we know that when total 3 matchsticks are there then the one, who is picking up matchstick first, is winning surely.

When total matchstick is 5, A will surely win as he takes up a strategy so that B will have last matchstick to pick up. So A will pick 1 matchstick first, then 4 matchsticks will be there and we know that the one, who picks up matchstick second now, will win. Hence A will win.

When total matchstick is 6, A will surely win either he takes up a strategy so that B will have last matchstick to pick up. So A will pick 2 matchstick first, then 4 matchsticks will be there and we know that the one, who picks up matchstick second now, will win. Hence A will win.

Hence it is making a pattern when number of matchsticks are 1,4,7,10......N then B is winning the game.

So largest value of N (less than 50) where B will win, is 49.

Instructions

Question 2

The smallest value of N (greater than 5) that ensures a win for B is

Solution

When total matchstick is 1, B will surely win as A is the one who is picking up matchstick first.

When total matchstick is 2, A will surely win as A will pick one matchstick then B has to pick last one.

When total matchstick is 3, A will surely win as he takes up a strategy so that B will have last matchstick to pick up. So A will pick 2 matchstick.

Hence it is making a pattern when number of matchsticks are 1,4,7,10......N then B is winning the game.

So here minimum value of N greater than 5 will be 7.

CAT Coins and Weights Questions

CAT Coins and Weights Questions

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