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ikadub [295]
3 years ago
6

A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hour. What is th

e train’s original speed?
a. 20 miles/hour
b. 25 miles/hour
c. 30 miles/hour
d. 35 miles/hour
Mathematics
1 answer:
loris [4]3 years ago
6 0
The answer is b. 25 miles/hour
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Probability is the odds that a random event would happen. The odds that the event would happen lies between 0 and 1. The closer the probability is to one, the more likely it is for the event to happen.

P(pass l morning) = number of students who took the test in the morning and passed / total number of students that took the exam in the morning

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P(pass l afternoon) = number of students who took the test in the afternoon and passed / total number of students that took the exam in the afternoon  = 36 / 50 = 0.72

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