A large bucket can hold exactly 12 litres of water when it is completely full. A small jug can hold 500 millilitres (mL) of water. A small glass can hold 250 millilitres (mL) of water. If 1 large bucket is poured into a water tank, followed by 4 small jugs and 6 small glasses, what is the total capacity of water added to the tank in litres?

Answer: B. 15.5 litres

To find the total, let's look at what we poured in:
• The bucket: Already in litres, so that's 12 L.
• The 4 jugs: Each holds 500 mL. Since two jugs make 1 litre, 4 jugs give us 2 L.
• The 6 glasses: Each holds 250 mL. Four glasses make 1 litre, and the last two make half a litre (500 mL). That adds up to 1.5 L.
Now just add them all up:
12 L + 2 L + 1.5 L = 15.5 Litres!

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