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3 years ago

A train is going at 200/KM per hour

Mathematics

2 answers:

luda_lava [24]3 years ago

7 0

Answer: 68.25 hrs.

Step-by-step explanation:

200 Km. to miles = 124.274 miles

8482 mi/124.274 mi =

68.25 hours

olya-2409 [2.1K]3 years ago

6 0

Answer:

It moved for 152.7 seconds

Step-by-step explanation:

Time taken/ period, T :

${ \sf{T = \frac{distance}{speed} }}$

substitute the variables:

${ \sf{T = \frac{8482}{(200 \times 1000)} }} \\ \\ { \sf{T =0.042 \: hours }}$

In seconds:

${ \sf{T = (0.042 \times 3600) \: s}} \\ { \sf{T = 152.7 \: seconds}}$

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Given:

Total students = 60

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To find:

The number of students who failed and then convert it in %.

Solution:

We have,

Number of passed student = 85% of Total students

= $\dfrac{85}{100}\times 60$

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So, number of passes students is 51.

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= $9$

So, number of students who failed is 9.

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Therefore, 15% students fail in the test.

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Step-by-step explanation:

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