Cards each marked with one of the numbers 6,7,8...15 were placed in a box and mixed thoroughly. one card is drawn at random from the box.what is the probability of getting a card with number less than 10
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no. less than 10=6,7,8,9=4
total=(6-15)=10
prob. of geting cards=4/10=2/5
total=(6-15)=10
prob. of geting cards=4/10=2/5
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