exam
Maths Puzzle
Numerical Ability
Solve (n)/(n-3)+n=(7n-15)/(n-3)
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exam Other Question
A bag contains three red balls, five white balls and two green balls. If three balls are selected at random, with replacement, find the probability that the first two are red and the third one is green.
S(t) = 58 - 6.8 In(t + 1)
models the typing S, in words per minute, of a student t months after the student completes a typing class.
a. What is the student's typing speed, to th