Question

The time taken (t) for customers to receive their orders at a fast-food restaurant is inversely proportional to the square of the number of staff(s)on duty. It takes 20 minutes for customer orders to be taken when there are 4 staff members on duty. If the number of staff is doubled, how many times quicker will the customers receive their orders?

Answer 1

Answer:

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Step-by-step explanation:

4^2=16

8^2=64

a1b1=a2b2

20*16=x*64

320/64=x

x=5

therefore it will take 5 minutes