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Question 12

Some red balls were put in a basket containing 12 white balls and 16 blue balls. If the probability of picking a red ball from the basekt is 3/7, how many red balls were introduced?

  • A.13
  • B.20
  • C.12
  • D.21
Objective

Question details

Exam body
UNN
Subject
Mathematics
Year
2010/2011
Question no.
#12
Type
Objective
Previous · Q11The chances of three independent events X, Y, Z occuring are 1/2, 2/3, 1/4… Next · Q13 Find the coordinates of the mid-point of the line joining (2, 7) and (1, -6).

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