Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. UNILAG
  4. /
  5. Mathematics
  6. /
  7. 2021/2022
  8. /
  9. Q19
Question 19

A bag contains 10 balls of which 3 are red and 7 are white. Two balls are drawn at random. Find the probability if none of the balls is red if the draw is without replacement

  • A.0.1
  • B.0.47
  • C.0.42
  • D.0.21
Objective

Question details

Exam body
UNILAG
Subject
Mathematics
Year
2021/2022
Question no.
#19
Type
Objective
Previous · Q18The volume of a certain sphere is numerically equal to twice its surface area… Next · Q20 The line perpendicular to the straight line y + 3/2x - 1 = 0 has the gradient

More from this paper

  • Q12A car which cost N1 million when new depreciates by about 12% in the first 6…
  • Q13Factorize fully px 2 - py 2 + qx 2 - qy.
  • Q14If x= {2, 3, 6, 7, 8} and y= {6, 7, 10, 3, 17}. Find xny
  • Q15The length of a rectangle is 3 times its width. If the width of the rectangle is…
  • Q16The population of a village is 5846. Express this number to three significant…
  • Q17The minimum value of y in the equation $$y = x^2 - 6x + 8$$
See all Mathematics 2021/2022 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy