Q1) There are 10 yellowbeads, 2 are red beads, and 10 are purple beads in a box
a) What is the probability of picking a yellow one?
b) What is the probability of picking a red one?
c) What is the probability of picking a purple one?
[ a) P(yellow)=$\frac{5}{11}$.
b) P(red)=$\frac{1}{11}$.
c) P(purple)=$\frac{5}{11}$.
]

Q1) There were 8 red sweets ,and 9 blue sweets in a tin . Two sweets were picked and not replaced. What was the probability they were both red ?
[ $\frac{7}{34}$ ]

Q1) There are 5 blue apples ,and some purple apples in a tin . 7 extra purple apples were added. Two apples were picked at random and not replaced. The probability they were both blue was $\frac{1}{12}$. How many purple apples were there to begin with ?
[ 4 ]

Q2) There are 10 red beads ,and 9 green beads in a bag.
a) What is the probability of picking a red bead?
b) What is the probability of picking a green bead?
[ a) P(red)=$\frac{10}{19}$.
b) P(green)=$\frac{9}{19}$.
]

Q2) There were 8 blue apples ,and 9 yellow apples in a packet . Two apples were picked and not replaced. What was the probability they were both blue ?
[ $\frac{7}{34}$ ]

Q2) There were 4 purple apples ,and some red apples in a packet . Two apples were picked at random and not replaced. The probability they were both purple was $\frac{6}{55}$. How many red apples were there ?
[ 7 ]

Q3) There are 4 greenpens, 4 are red pens, and 9 are purple pens in a bag
a) What is the probability of picking a green one?
b) What is the probability of picking a red one?
c) What is the probability of picking a purple one?
[ a) P(green)=$\frac{4}{17}$.
b) P(red)=$\frac{4}{17}$.
c) P(purple)=$\frac{9}{17}$.
]

Q3) There were 10 purple beads ,and 2 green beads in a draw . Two beads were picked and not replaced. What was the probability they were both purple ?
[ $\frac{15}{22}$ ]

Q3) There were 10 blue pencils ,and some green pencils in a bag . Two pencils were picked at random and not replaced. The probability they were both blue was $\frac{5}{17}$. How many green pencils were there ?
[ 8 ]

Q4) There are 5 redsweets, 5 are yellow sweets, and 5 are blue sweets in a draw
a) What is the probability of picking a red one?
b) What is the probability of picking a yellow one?
c) What is the probability of picking a blue one?
[ a) P(red)=$\frac{1}{3}$.
b) P(yellow)=$\frac{1}{3}$.
c) P(blue)=$\frac{1}{3}$.
]

Q4) There were 4 green pens ,and 10 yellow pens in a bag . Two pens were picked and not replaced. What was the probability they were both green ?
[ $\frac{6}{91}$ ]

Q4) There are 4 blue apples ,and some green apples in a bag . 4 extra green apples were added. Two apples were picked at random and not replaced. The probability they were both blue was $\frac{1}{20}$. How many green apples were there to begin with ?
[ 8 ]

Q5) There are 10 greenpencils, 2 are yellow pencils, and 5 are blue pencils in a tray
a) What is the probability of picking a green one?
b) What is the probability of picking a yellow one?
c) What is the probability of picking a blue one?
[ a) P(green)=$\frac{10}{17}$.
b) P(yellow)=$\frac{2}{17}$.
c) P(blue)=$\frac{5}{17}$.
]

Q5) There were 7 purple apples ,and 8 red apples in a draw . Two apples were picked and not replaced. What was the probability they were both purple ?
[ $\frac{1}{5}$ ]

Q5) There were 7 yellow pens ,and some blue pens in a tray . Two pens were picked at random and not replaced. The probability they were both yellow was $\frac{7}{22}$. How many blue pens were there ?
[ 5 ]