You have just timed a person doing a job a four times. the first time it took the person 120 minutes, the second time it took 90
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Answer:
Step-by-step explanation:
From the question we are told that
Dimension of drawing
20 centimetres by 10 centimetres
Scale of drawing
1 cm:250 cm
Generally the the Main dimension of the pool is mathematically given as
Therefore Area Aof main pool is mathematically given as