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Friday, May 8, 2009

maths....!!! again MAY....upto 7th

1.If x < y < 0, then
Col A: xy
Col B: y – x

2.Given that, there are two racks A and B. If 4 books from rack A are replaced to rack B, then the number of books become equal. If 7 books from rack B are replaced to A, then number of books in A is 3 times the books in B. What is the total number of books?
(Something like this)

3.If a person moves towards west in straight line for 6m and then to north for another 16m and then to west again for another 10m, find the distance between starting and ending point?

4.Given a coordinate system, a point P is at -5 on the x-axis, a point R is at 10 on the x-axis and another point Q is situated in between P and R, such that the ratio of distance between P and Q to the distance between R and Q is 2 is to 3.
Col A: The x-coordinate of point Q
Col B: 0

5. If N is an integer between 200 and 300 with units digit 5 and tens digit x, then
Col A: N/5
Col B: 40+2x

6.Given a series of odd numbers from 1 to n. Find the probability, that a number selected at random will be an odd number?(provided ‘n’ is an odd number)

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