Mathematical Puzzle

A numeric lock has a 3 digit key
HINT
A. 6 8 2 – One Number is correct and well placed
B. 6 1 4 – One Number is correct but wrong place
C. 2 0 6 – Two Numbers are correct but Wrong Places
D. 7 3 8 – Nothing is correct
E. 8 7 0 – One Number is correct but wrong placeView SolutionSubmit Solution 1.5K views
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All of Mrs. John pets are dogs except one, and all her pets are cats except one. How many cats and dogs does she have?
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How do we measure fortyfive minutes using two identical wires, each of which takes an hour to burn? We have matchsticks with us. The wires burn nonuniformly. So, for example, the two halves of wire might burn in 10 minutes and 50 minutes respectively
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During a recent census, a man told the census taker that he had three children. When asked their ages, he replied, “The product of their ages is 72. The sum of their ages is the same as my house number.” The census taker ran to the man’s front door and looked at the house number. “I still can’t tell,” she complained. The man replied, “Oh that’s right, I forgot to tell you that the oldest one likes chocolate pudding.” The census taker then promptly wrote down the ages of the three children.
How old are they?
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How many cases do you need if you have to pack 112 pairs of shoes into cases that each hold 28 shoes?
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In a party of 35 people, there are twice as many women as children and twice as many children as men.
How many of each are there?
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Gordon is twice as old as Tony was when Gordon was as old as Tony is now. The combined age of Gordon and Tony is 112 years.
How old are Gordon and Tony now?
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When Jacob is twice as old as John, Then I shall be just 17. But Jaco was 23 When John was twice as old as me.’ That is what Trump said.
So, tell us, How old he was when John was ten?View SolutionSubmit Solution 39.7K views
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A newspaper made of 16 large sheets of paper folded in half. The newspaper has 64 pages altogether. The first sheet contains pages 1, 2, 63, 64.
If we pick up a sheet containing page number 45. What are the other pages that this sheet contains?
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