2006
Mathematics
JAMB
A final examination requires that a student answer any 4 out of 6 questions. In how many ways can this be done?
A.
15
B.
20
C.
30
D.
45
Correct Answer: 15
Explanation
5C4 =6!/((6-4)!4!)=6!/2!4!=(6×5×4!)/(2×1×4!)=15ways
5C4 =6!/((6-4)!4!)=6!/2!4!=(6×5×4!)/(2×1×4!)=15ways
THIS WEEK's
Latest Articles
Top-Scorer Okoro Uchechukwu Solomon Reveals How He Scored 337 in JAMB
by samuel olalekan adeyemi
Bouncing Back: How Samuel Isaac Overcame Setbacks to Score 265 in JAMB and What He Learned
by samuel olalekan adeyemi
Managing Stress During Exams: Practical Tips for Students
by samuel olalekan adeyemi
