Permutation & Combination

SAT problem : Question of the day !!!

February 9, 2013 Permutation & Combination

20 points of which 7 are collinear. How many triangles & quadrilaterals can be drawn? A. 55,2355 B. 79,4355 C. 54,4533 D. 45,2644 E. 50,6654

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SAT Problem : Question of the day !!

February 8, 2013 Permutation & Combination

In how may ways can you arrange 4 alphabets (w,x, y, z) in a straight line so that w comes before ‘y ? A. 15 B. 14 C. 24 D.12 E. 20

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SAT Problem : NUMBER OF POLYGONS?

January 31, 2013 Permutation & Combination

There are 20 points of which 7 are co-linear.  How many triangles & quadrilateral can be formed? A. 22 ,  43 B. 78,  4563 C. 79,  4355 D. 40,  4657 E. 80,  354

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SAT Problem : if Best and Worst paintings are together. ?

January 30, 2013 Permutation & Combination

Arrange 4 different paintings so that the best and worst are together. A. 10 B. 12 C. 15 D. 8 E. 24

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SAT Problem : If repetition is allowed.

January 29, 2013 Ivy Zone

How many three digit numbers can be formed using the digits  5,6,7? (1) if repetition is allowed. (2) if repetition is not allowed. A. 9 , 14 B. 20 , 18 C. 27 , 6 D. 26, 22 E. 24 , 24

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SAT Question of the Day: How many handshakes take place?

January 28, 2013 Ivy Zone Permutation & Combination

6 people meet for a business lunch. Each person shakes hands once with each other person present. How many handshakes take place? A. 30 B. 21 C. 18 D. 15 E. 10

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2 Maths,

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