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Variation per month in X, Y, Z<br />
Variation in X = 18 + 10 - (8 + 3) = 17<br />
Variation in Y = 17 + 12 - (9 + 6) = 14<br />
Variation in Z = 4 + 20 - (22 + 10) = -8<br />
Thus, employee strength in three BPOs<br />
X = 500 + (17 x 12) = 704<br />
Y = 650 + (14 x 12) = 818<br />
Z = 800 + (-8 x 12) = 704<br />
Hence, answer is (A)<br />
Z 22 4 10 20<br />
Q.14 In which month will the sum of the absolute value of differences in employee strengths<br />
between X and Y, and Y and Z be the least?<br />
(A) June (B) July (C) August (D) September<br />
Solution 14. Strength table in different months<br />
Difference table for these corresponding months<br />
June July August September<br />
X 602 619 636 652<br />
Y 734 748 762 776<br />
Z 752 744 736 728<br />
June July August September<br />
X-Y 132 129 126 124<br />
Y-Z 18 4 26 48<br />
of sum in these months:<br />
June = 150, July = 133, August = 152, September = 172<br />
The sum is least in July. Hence, answer is (B).<br />
Directions: Questions 15 to 17 relate to the CAMPUS PLACEMENT description given<br />
below:<br />
Three companies, Muck-In-Sea (MIS), Cold Man's Axe (CMA), and Bark Laze Bank (BLB) are<br />
scheduled, in that order, to interview 8 young MBA wizards at Hogwarts for offering career<br />
placements on Day minus 15/8. Each company can select at most 3 students. Once a student<br />
receives an offer from a company, that student is not allowed to appear in any more interviews.<br />
Q.15 How many possible combinations of student selections are there for MIS?<br />
(A) 4 (B) 93 (C) 92 (D) 3
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