Bulbs
In the box are 16 bulbs with power 75 W, 14 bulbs with power 40 W, and 10 with 50 W. Calculate the probability that a randomly selected bulb is:
a) 40 W
b) 75 W or 40 W
a) 40 W
b) 75 W or 40 W
Final Answer:

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combinatoricsarithmeticUnits of physical quantitiesthemes, topicsGrade of the word problem
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