11 C. 3!3!2:2! B. 10! -D. 11! 3!3!2!2! Four girls and three boys arrived at a restaurant. If only four chairs at a round table are available they can be seated in A. 5040 ways The number of selections of 5 students from a class of 9 students for an expedition in whic the class prefect must attend is B. 35 ways 840ways D. 210 ways B. 1+ °C4 A. 1+ C4 Five different beads can be threaded onto a ring C. 1 x $C; Đ. 1 x °C A. 120 ways B. 12 ways C. ays D. 50 ways
11 C. 3!3!2:2! B. 10! -D. 11! 3!3!2!2! Four girls and three boys arrived at a restaurant. If only four chairs at a round table are available they can be seated in A. 5040 ways The number of selections of 5 students from a class of 9 students for an expedition in whic the class prefect must attend is B. 35 ways 840ways D. 210 ways B. 1+ °C4 A. 1+ C4 Five different beads can be threaded onto a ring C. 1 x $C; Đ. 1 x °C A. 120 ways B. 12 ways C. ays D. 50 ways
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
Solve Q12, 13 & 14 Showing detailly all steps
Transcribed Image Text:10. The number of different arrangements of the letters of the word PROMPT if the P's must be
separated is
A. 720
11. The number of arrangements of the letters of the word "COUAGADOUGOU"with each
arrangement beginning with the letter D' is
B. 240
С. 360
» D. 120
11
C.
3!3!2!2!
10!
В. 10!
-D. 11!
A.
3!3!2!2!
• 12. Four girls and three boys arrived at a restaurant. If onlv four chairs at a round table are
available they can be seated in
A. 5040 wayS
13. The number of selections of 5 students from a class of 9 students for an expedition in wvhich
the class prefect must attend is
B. 35 ways
€. 840ways
D. 210 ways
BCA
B. 1+ °C4
A. 1+ "C4
14. Five different beads can be threaded onto a ring in
C. 1 x C5
Đ. 1 x °C4
A. 120 ways
J-B. 12 ways
C. 4 TA ays
D. 50 ways
de
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