Solving (set 4)

Andrew buys a 1.6 kg leg of lamb. The lamb costs 13.30 € per kilo. How much did he pay ?
€ 		 81 litres of wine fills 108 bottles. How much wine is there in each bottle in cL?
 
The little train, which does the tour of the mine leaves every 20 minutes. There are 6 carriages with 8 seats in each carriage, and 2 seats next to the engine. The train has just left. How long do Eloise and Mark have to wait if there are 162 children in front of them?
 
 in hours and minutes		 Sea water contains 35 g of salt per litre. How many litres of sea water do you need to evaporate to get 1 kg of salt ?
 
to the nearest cL
If seven chocolate croissant cost 3.71 €,
how much do three cost ?
€  		 In the 110 metres hurdle race, there are 10 hurdles. The first hurdle is 13.72 metres from the start, and the last is 14.02 metres from the end. What is the distance between 2 consecutive hurdles ?
 
A school has 158 pupils in Year 7. If there has to be between 20 and 24 students in each class, how many classes are there ?
 
Paul has 37 boxes of food products to put on the supermarket shelf. The total weight is 1961 kg.
His trolley can only carry up to 500 kg at a time. What is the minimum number of trips he has to make ?