(a(i))[2]
Complete the statement. 1 centimetre stands for [BLANK] metres.
(a(ii))[3]
Calculate the full length of the running track in metres.
(a(iii))[3]
Calculate how long she takes to go once round the track. Give your answer in minutes and seconds, correct to the nearest second.
(b(i))[2]
Calculate how many laps he can finish in one hour.
(b(ii))[3]
Calculate the smallest number of laps each of them completes before both are back at point $A$ together.