Вот задача: из гнезда одновременно в противоположных направлениях вылетели две синички. Через 18 секунд расстояние между ними стало 1278 м. Скорость первой синички 40 м/с . С аркой скоростью летела вторая синичка. Помогите пожалуйста!

Sentences a to l are taken from four different articles. Group the sentences together in the correct order under the headline below.

We know where you are.

38___      

39___

40___

Modern office workers are rude

41___

42___

43___

The new target market

44___

45___

46___

Pay less for more or more for less?

47___

48___

49___

a)   They’re currently worth £13 billion and no company should ignore them.

b)   Examples of their rudeness include ignoring colleagues and answering phones during meetings.

c)   We read a lot about companies watching employees use of internet and private email.

d)   Advances in production and distribution have caused this.

e)   But did you also know that when you turn on your mobile phone, a phone company can monitor your calls?

f)    No, they aren’t grey consumers or the rich executives. They’re students.

g)   Prices have fallen in the food business for the last ten years.

h)   A new survey claims that employees in the twenty first century are more bad-mannered than workers in the last century.

i)    But the question is now, how far can the industry continue down this road and are consumers prepared to start paying more?

j)    They can even discover your location.

k)   Now some organisations are training their staff to be polite.

l)    And as one marketer points out, ‘they may be poor now but they are the high-earners of the future.’

В КАКИХ ПРОИЗВЕДЕНИЯХ ДЕЙСТВИЕ ПРОИСХОДИТ В САНК ПЕТЕРБУРГЕ                             А)ЧЁРНАЯ КУРИЦАИЛИ ПОДЗЕМНЫЕ ЖИТЕЛИ  Б)ПРИКЛЮЧЕНИЯ ТОМА СОЙЕРА В)РЕВИЗОР