QUESTION 10:   A car completes a 200 km journey at an…

QUESTION 10:   A car completes a 200 km journey at an average speed of x km/h.  The car completes the return journey of 200 km at an average speed of km/h.   10.1) Show that the difference between the time taken for each of the two journeys is hours. (2) 10.2) Find the difference between the time taken for each of the two journeys when x = 80. Give your answer in minutes and seconds (3)

QUESTION 7:   A car park has 880 parking spaces….

QUESTION 7:   A car park has 880 parking spaces.   7.1) Some of the spaces are reserved. The ratio of reserved spaces : not reserved spaces = 1 : 10. Work out the number of spaces that are not reserved. (1) 7.2) 25% of the 880 spaces are on the top floor. Work out the number of spaces that are on the top floor. (1) 7.3) At 06:00 one morning, of the 880 spaces are filled. By 06:30, no cars have left the car park but another of the 880 spaces are filled. Work out the fraction of the 880 spaces that are empty at 06:30. (3)