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(#M40002962) SELF QUESTION Number Keep an EYE

This is a simple Number System Problem, posted under Placement Category

Let x, y and z be distinct integers. x and y are odd and positive, and z is even and positive. Which one of the following statements cannot be true?

1)(x-z)2 y is even 2)(x-z)y2 is odd 3) (x-z)y is odd 4)(x-y)2z is even

Solution

i think, in this question in options, 2 used is not multiplied number, it is square
so by checking first is (odd-even)^2 * odd = odd
but it is given even so it will be incorrect

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Ankit (14 years ago)

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(#M40002959) SELF QUESTION Soldier Keep an EYE

When Alexander the Great attacked the forces of Porus, an Indian soldier
was captured by the Greeks. He had displayed such bravery in battle, however,
that the enemy offered to let him choose how he wanted to be killed. They told
him, "If you tell a lie, you will put to the sword, and if you tell the truth you will be
hanged."
The soldier could make only one statement. He made that statement and went
free. What did he say?

Ankit (14 years ago)

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(#M40002949) SELF QUESTION Keep an EYE

A group consists of equal number of men and women. Of them 10% of men and 45% of women are unemployed. If a person is randomly selected from the group. Find the probability for the selected person to be an employee

Solution

if man is selected then probability of him to be employed = 10/100
similarly if women is selected then probability of her to be employed = 45/100
so probability = (1/2)(10/100)+(1/2)(45/100) = 2/40 + 9/40 = 11/40



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jai Narayan Mishra (14 years ago)

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(#M40002948) SELF QUESTION Keep an EYE

A three digit number consists of 9,5 and one more number . When these digits are reversed and then subtracted from the original number the answer yielded will be consisting of the same digits arranged yet in a different order. What is the other digit

jai Narayan Mishra (14 years ago)

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(#M40002947) SELF QUESTION Keep an EYE

If one tyre of a car suddenly gets stolen and after sometime u find the tyre
without the screws how will u make ur journey complete?

jai Narayan Mishra (14 years ago)

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(#M40002946) SELF QUESTION Keep an EYE

You are a landscape designer and your boss asked u to design a landscape such that you should place 4 trees equidistance from each other.

jai Narayan Mishra (14 years ago)

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(#M40002945) SELF QUESTION Keep an EYE

A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once to see if the bulb is lit or not (this is not visible from the outside), how can you determine with which of the three switches the light bulb can be switched on?

Solution

First on a switch for 5 min, then make it switch off and switch on the other, go to the room, if bulb is on then 2nd switch is answer, if bulb is off then touch the bulb if it is hot then 1st switch is answer, otherwise 3rd switch is answer.

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jai Narayan Mishra (14 years ago)

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(#M40002944) SELF QUESTION Keep an EYE

Here is a sequence of numbers: 1 11 21 1211 111221 It seems to be a strange sequence, but yet there is a system behind it... What is the next term in this sequence?

jai Narayan Mishra (14 years ago)

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(#M40002943) SELF QUESTION Keep an EYE

Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook. To his surprise, Jack got nine different answers. How many hands did Jack's wife shake?

jai Narayan Mishra (14 years ago)

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(#M40002942) SELF QUESTION Keep an EYE

Yesterday evening, Helen and her husband invited their neighbors (two couples) for a dinner at home. The six of them sat at a round table. Helen tells you the following: "Victor sat on the left of the woman who sat on the left of the man who sat on the left of Anna. Esther sat on the left of the man who sat on the left of the woman who sat on the left of the man who sat on the left of the woman who sat on the left of my husband. Jim sat on the left of the woman who sat on the left of Roger. I did not sit beside my husband." What is the name of Helen's husband?

jai Narayan Mishra (14 years ago)

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