Three times a number increased by ten equal to twenty less than six times a number . find the number
2 answers:
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<h2>Answer:</h2><h2>The probability of selecting a defective roll followed by another defective roll = 
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Step-by-step explanation:
The total number of rolls in a box = 15
The number of defective items = 3
Two rolls are to be selected, one after the other. The probability of selecting a defective roll followed by another defective roll = ?
The probability that the first roll is detective =
The probability that the second roll is detective =
Required probability =
=