A car travels 389 km. It uses a total of 19.19 litres of petrol. Write down a calculation you could do mentally to estimate the number of litres used to travel 1 km

Many things that seem threatening in the dark become welcoming when we shine light on them

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.