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juin [17]
2 years ago
13

peter drove a total of 1000 km and used 100 litre of prtrol calculate the rate of which the petrol was in kilometers per litre??

​
Mathematics
1 answer:
abruzzese [7]2 years ago
6 0

Answer:

The petrol used was 0.1 litre for every 1 kilometre.

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Kip bought one and four sixths pounds of toffee. He gave five sixths of a pound to his friend. How much toffee does Kip have lef
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5/6

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1 4/6-5/6=?

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nCr = \frac{n!}{(n-r)!r!}

Now If A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team, then this can be done in the following way;

7C2 * 9C2

7C2 = \frac{7!}{5!2!} \\= \frac{7*6*5!}{5!*2} \\= 7*3\\= 21ways\\\\similarly;\\\\9C2 = \frac{9!}{7!2!}\\9C2= \frac{9*8*7!}{7!*2} \\9C2 = 9*4\\9C2 = 36

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