Q1) There were 9 green pencils ,and 7 purple pencils in a tray . Two pencils were picked and not replaced. What was the probability they were both green ?
[ \(\frac{3}{10}\)
]
Q1) There were 9 red beads ,and some blue beads in a draw . Two beads were picked at random and not replaced. The probability they were both red was \(\frac{4}{19}\). How many blue beads were there ?
[ 10
]
Q1) There are 5 red pens ,and some yellow pens in a bag. Two pens were picked at random from the bag and not replaced. The probability they are both the different is \(\frac{15}{28}\). How many yellow pens were there ?
[ 3
]
Q2) There were two colour of pens in a packet. There were 10 purple pens ,and 5 yellow pens. Two pens were picked and not replaced. What was the probability they were both the same colour ?
[ \(\frac{11}{21}\)
]
Q2) There were 4 green pens ,and some blue pens in a bag . Two pens were picked at random and not replaced. The probability they were both green was \(\frac{2}{15}\). How many blue pens were there ?
[ 6
]
Q2) There are two colour of pencils in a draw. There are 4 more purple pencils than red . Two pencils are picked at random and not replaced.The probability they are both the same is \(\frac{1}{2}\). The number of red pencils is less than 10. How many purple pencils are there ?
[ 10 ]
Q3) There were two colour of pencils in a draw. There were 7 yellow pencils ,and 10 red pencils. Two pencils were picked and not replaced. What was the probability they were both the same colour ?
[ \(\frac{33}{68}\)
]
Q3) There were 8 red pencils ,and some blue pencils in a bag . Two pencils were picked at random and not replaced. The probability they were both red was \(\frac{7}{34}\). How many blue pencils were there ?
[ 9
]
Q3) There are two colour of pens in a box. There are 4 more blue pens than purple . Two pens are picked at random and not replaced.The probability they are both the same is \(\frac{17}{33}\). The number of purple pens is less than 10. How many blue pens are there ?
[ 8 ]
Q4) There were 4 green pens ,and 2 blue pens in a packet . Two pens were picked and not replaced. What was the probability they were both green ?
[ \(\frac{2}{5}\)
]
Q4) There are 9 yellow pens ,and some green pens in a tin . 3 extra green pens were added. Two pens were picked at random and not replaced. The probability they were both yellow was \(\frac{12}{77}\). How many green pens were there to begin with ?
[ 10
]
Q4) There are 5 purple apples ,and some yellow apples in a packet. Two apples were picked at random from the packet and not replaced. The probability they are both the different is \(\frac{35}{66}\). How many yellow apples were there ?
[ 7
]
Q5) There were 5 green pencils ,and 5 blue pencils in a box . Two pencils were picked and not replaced. What was the probability they were both green ?
[ \(\frac{2}{9}\)
]
Q5) There are 10 red apples ,and some green apples in a packet . 5 extra green apples were added. Two apples were picked at random and not replaced. The probability they were both red was \(\frac{15}{77}\). How many green apples were there to begin with ?
[ 7
]
Q5) There are two colour of pencils in a bag. There are 3 more red pencils than yellow . Two pencils are picked at random and not replaced.The probability they are both the same is \(\frac{27}{55}\). The number of yellow pencils is less than 10. How many red pencils are there ?
[ 7 ]