Q1) There were 4 yellow pens ,and 4 purple pens in a tin . Two pens were picked and not replaced. What was the probability they were both yellow ?
[ \(\frac{3}{14}\)
]
Q1) There were 8 green pencils ,and some blue pencils in a tin . Two pencils were picked at random and not replaced. The probability they were both green was \(\frac{28}{55}\). How many blue pencils were there ?
[ 3
]
Q1) There were 4 yellow beads ,and some green beads in a packet. Two beads were picked at random from the packet and not replaced. The probability they were both the same is \(\frac{17}{33}\). How many green beads were there ?
[ 8
]
Q2) There were two colour of pens in a draw. There were 9 blue pens ,and 8 green pens. Two pens were picked and not replaced. What was the probability they were both the same colour ?
[ \(\frac{8}{17}\)
]
Q2) There were 4 red pencils ,and some yellow pencils in a packet . Two pencils were picked at random and not replaced. The probability they were both red was \(\frac{1}{11}\). How many yellow pencils were there ?
[ 8
]
Q2) There are two colour of beads in a tin. There are 5 more blue beads than red . Two beads are picked at random and not replaced.The probability they are both the same is \(\frac{7}{13}\). The number of red beads is less than 10. How many blue beads are there ?
[ 9 ]
Q3) There were 5 yellow apples ,and 8 purple apples in a packet . Two apples were picked and not replaced. What was the probability they were both yellow ?
[ \(\frac{5}{39}\)
]
Q3) There are 4 yellow pencils ,and some blue pencils in a tray . 10 extra blue pencils were added. Two pencils were picked at random and not replaced. The probability they were both yellow was \(\frac{2}{51}\). How many blue pencils were there to begin with ?
[ 4
]
Q3) There were 9 yellow pens ,and some purple pens in a bag. Two pens were picked at random from the bag and not replaced. The probability they were both the same is \(\frac{19}{40}\). How many purple pens were there ?
[ 7
]
Q4) There were 4 blue beads ,and 9 purple beads in a tray . Two beads were picked and not replaced. What was the probability they were both blue ?
[ \(\frac{1}{13}\)
]
Q4) There are 10 yellow sweets ,and some green sweets in a tin . 4 extra green sweets were added. Two sweets were picked at random and not replaced. The probability they were both yellow was \(\frac{9}{38}\). How many green sweets were there to begin with ?
[ 6
]
Q4) There were 8 red pens ,and some yellow pens in a bag. Two pens were picked at random from the bag and not replaced. The probability they were both the same is \(\frac{73}{153}\). How many yellow pens were there ?
[ 10
]
Q5) There were two colour of pens in a tray. There were 9 yellow pens ,and 4 purple pens. Two pens were picked and not replaced. What was the probability they were both the same colour ?
[ \(\frac{7}{13}\)
]
Q5) There were 5 yellow sweets ,and some green sweets in a draw . Two sweets were picked at random and not replaced. The probability they were both yellow was \(\frac{2}{11}\). How many green sweets were there ?
[ 6
]
Q5) There are 5 yellow apples ,and some green apples in a box. Two apples were picked at random from the box and not replaced. The probability they are both the different is \(\frac{35}{66}\). How many green apples were there ?
[ 7
]