I would be much obliged if someone could help me answer the last 4 questions of an assignment I had to do. If you could type out the solution and answer, I would be grateful. I’ just stuck. It is essential however that you type out the solution (and answer of course) so that I can see/learn what you did.(adsbygoogle = window.adsbygoogle || []).push({});

1. The product of five different odd prime numbers is a five digit number of the formstrst, where r = 0 The number of such five digit numbers is:

A) 4 B) 6 C) 8 D) 14 E) 10

2. At one time, the number of employees in a company was a perfect square. Later, with an increase of 100 employees, the number of employees was one more than a perfect square. Now with an additional increase of 100 employees, the total number is again a perfect square. The original number of employees was a multiple of:

A) 5 B) 7 C) 9 D) 11 E) 13

3. In a square array with 10 rows and 10 columns, the element in themth row andnth column is given by the product (2m-1)(3n-1). The sum of all the elements in the array is between:

A) 7500 and 10 000 B) 10 000 and 12 500 C) 12 500 and 15 000 D) 15 000 and 17 500 E) 17 500 and 20 000

4. Unit cubes (1 x 1 x 1) form a solid rectangular block measuring 20x25x15. Consider the line segment PQ (See attachmentvisualize.bmp). Through how many unit cubes does PQ pass?

A) 50 B) 58 C) 60 D) 66 E) 70

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# Through how many unit cubes does PQ pass?

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