Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. BUK
  4. /
  5. Mathematics
  6. /
  7. 2012/2013
  8. /
  9. Q8
Question 8

A bag contains 16 red and 20 blue balls. How many white balls must be added to the bags so that the probability of randomly picking a red ball is equal to 2/5

  • A.40
  • B. 20
  • C. 24
  • D. 4
Objective

Question details

Exam body
BUK
Subject
Mathematics
Year
2012/2013
Question no.
#8
Type
Objective
Previous · Q7If M and N are the mean and median respectively of the set of numbers… Next · Q10 A group of market women sell at least one of yam, plantain and maize. 12 of them…

More from this paper

  • Q3If p+1, 2p-10, 1-4p 2 are three consecutive terms of an arithmetic progression…
  • Q4The sum of the first three terms of a geometric progression is half its sum to…
  • Q5A chord of a circle radius √3 cm subtends an angle of 60° on the circumference…
  • Q6If the distance between the points (x, 3) and (-x, 2) is 5, find x
  • Q11A trader bought 100 oranges at 5 for N12.00, 20 oranges got spoilt and the…
  • Q12Divide 2344 6 by 42 6
See all Mathematics 2012/2013 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