Question

Guys i need help with this question :

A fish tank contains 60 litres of water, rounded to 1 significant figure. 40 litres of water, rounded to 1 significant figure, are removed from the tank. Work out the upper bound of the volume of water left in the fish tank. Give your answer in litres.
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Answer 1

Initial Volume of water in tank = 60 L Volume of water removed from tank = 40L To find : volume of water left in tank

Final volume if water in tank = volume of water left in the tank

Final volume = Initial volume of water - volume of water removed

Final volume = 60 L - 20 L = 40 L

Hence volume of water left in fish tank = 20 L ( in one significant figure)

volume of water left in the fish tank = 20 L