An HOn2- scale train is a model train that is constructed at the ratio 1: 87.1. If an HOn2 model of a locomotive is 10. 4712 inc
1 answer:
Answer:
The actual length of the train is 76 ft
Step-by-step explanation:
Remember that
1 ft=12 in
Convert inches to feet
10.4712 in=10.4712/12=0.8726 ft
we know that
The scale of the train is
That means-----> One unit in the model train represent 87.1 units in the actual train
To find out the length of the actual train, multiply the length of the model train by 87.1
so
0.8726(87.1)=76 ft
therefore
The actual length of the train is 76 ft
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Step-by-step explanation:
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Number of questions (N) = 16
Number of easy questions (E) = 8
Number of medium-hard questions (M) = 5
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Now, probability of getting the second question as easy question is given as:
Now, probability that the first two contestants will get easy questions is given by the product of . So,
Therefore, the probability that the first two contestants will get easy questions is