exam
Maths Puzzle
Numerical Ability
Ron Wood can paint a room in 6 hr working alone. If his son, Jason, helps him, the job takes 4 hr. How long would it take Jason to do the job if he worked alone?
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exam Other Question
Two dice are rolled 20 times. Compute Pe(13), the empirical probability of obtaining a score of 13. Explain the result very briefly.
5b + 8
______ < 3b
3