Question

five small bucket and two large bucket of water make 20 litres​

Answer 1

Step-by-step explanation:

4+4+4–5 = 7. Alternatively, you could fill the third container from the 5 litre mug 3 times, then fill the 4 litre mug from the third container twice. You will be left with 7 litres in the third container. 5+5+5–4–4 = 7.