MBA Exam

Two white squares and a black square have to be chosen from a chess board such that no two of them are in the same row or column. In how many ways can the selection be made?

1) 6400
2) 6144
3) 6688
4) 6912

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MBA Other Question

How many numbers are coprime to 2304 and lies between 1000 and 2000 ?

1) 332
2) 500
3) 333
4) 334
A golf ball has diameter equal to 4.2 cm. Its surface has 200 dimples each of radius 2 mm. Calculate the total surface area which is exposed to the surroundings assuming that the dimples are hemispherical…….

1) 78 cm<sup>2</sup>
2) 80.58 cm<sup>2</sup>
3) 81.72 cm<sup>2</sup>
4) 83.60 cm<sup>2</sup>
5) none of these