csat-suneung 2010 Q7

csat-suneung · South-Korea · csat__math-science 3 marks Permutations & Arrangements Selection and Task Assignment

A company employee has 6 tasks to handle in total, including A and B. The employee wants to handle 4 tasks including A and B today, and A must be handled before B. What is the number of ways to select the tasks to handle today and determine the order of handling the selected tasks? [3 points]
(1) 60
(2) 66
(3) 72
(4) 78
(5) 84

A company employee has 6 tasks to handle in total, including A and B. The employee wants to handle 4 tasks including A and B today, and A must be handled before B. What is the number of ways to select the tasks to handle today and determine the order of handling the selected tasks? [3 points]\\
(1) 60\\
(2) 66\\
(3) 72\\
(4) 78\\
(5) 84

Paper Questions

Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 Q19 Q20 Q21 Q22 Q26 Q26b Q26c Q27 Q27b Q28 Q28b Q29 Q29b Q30 Q30b