• Placement Questions
• /
• General

general Math Questions and Answer Page 36

(#M40007852) GENERAL QUESTION Harder one? Keep an EYE

Suppose there are 1000 doors namely D1,D2,D3,...,D1000 and there are 1000 persons namely P1,P2,P3,...,P1000. First P1 opens all the doors. Then P2 closes all even numbered doors. P3 changes every third door (i.e., he closes D3, opens D6 and so on). Similarly Pm changes every mth door. Finally P1000 opens D1000 if it were closed, and closes it if it were open.
At the end how many doors remain open

Asked In general Vignesh (13 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (1)   (1) Submit Your Solution

(#M40007851) GENERAL QUESTION Find the next numbers Keep an EYE

What numbers should be put instead of question marks:
4, 7, 6, 2, 3, 7, 2, ?, ?.

Asked In general Vignesh (13 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (1)   (0) Submit Your Solution

(#M40007850) GENERAL QUESTION Tough one?? Keep an EYE

Here's a number sequence:
111, 112, 21123, 1312, 2114, 121, 25262, 73123...
Find the rule and post the two next numbers in the sequence.

Asked In general Vignesh (13 years ago)

Unsolved

Is this Puzzle helpful?   (0)   (1) Submit Your Solution

(#M40007776) GENERAL QUESTION Keep an EYE

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 5 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 7 hours.

What fraction of the tank (initially empty) will be filled in 2.85 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.75).

Asked In general Vignesh (13 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (6)   (5) Submit Your Solution

(#M40007774) GENERAL QUESTION Squares Keep an EYE

If you were to construct a 8 x 8 checkered square (i.e., a 8 x 8 chess board), how many squares would there be in total? Explain?

Asked In general Vignesh (13 years ago)

Unsolved Read Solution (6)

Is this Puzzle helpful?   (0)   (2) Submit Your Solution

(#M40007772) GENERAL QUESTION Find the sum of squares Keep an EYE

If the difference of two numbers is 10 and their product is 17, what is the sum of their squares? Explain?

Asked In general Vignesh (13 years ago)

Unsolved Read Solution (6)

Is this Puzzle helpful?   (10)   (1) Submit Your Solution

(#M40000186) GENERAL QUESTION Keep an EYE

An anthropologist discovers an isolated tribe whose written alphabet contains only six letters (call the letters A, B, C, D, E and F). The tribe has a taboo against using the same letter twice in the same word. It's never done.

If each different sequence of letters constitues a different word in the language, what is the maximum number of six-letter words that the language can employ?

Asked In general Naveen (14 years ago)

Solved tk Read Solution (2)

Is this Puzzle helpful?   (17)   (3) Submit Your Solution

(#M40000185) GENERAL QUESTION Keep an EYE

If you were to dial any 7 digits on a telephone in random order, what is the probability that you will dial your own phone number?
Assume that your telephone number is 7-digits.

Asked In general Naveen (14 years ago)

Unsolved Read Solution (13)

Is this Puzzle helpful?   (21)   (2) Submit Your Solution

(#M40000184) GENERAL QUESTION Keep an EYE

At University of Probability, there are 375 freshmen, 293 sophomores, 187 juniors, & 126 seniors. One student will randomly be chosen to receive an award. What percent chance is there that it will be a junior? Round to the nearest whole percent

Asked In general Naveen (14 years ago)

Unsolved Read Solution (6)

Is this Puzzle helpful?   (11)   (2) Submit Your Solution

(#M40000183) GENERAL QUESTION Keep an EYE

There are 4 mugs placed upturned on the table. Each mug have the same number of marbles and a statement about the number of marbles in it. The statements are: Two or Three, One or Four, Three or One, One or Two.

Only one of the statement is correct. How many marbles are there under each mug?

Asked In general Naveen (14 years ago)

Solved Vadivelan M Read Solution (8)

Is this Puzzle helpful?   (23)   (2) Submit Your Solution