Bathroom 3

De Mesa family will soon be occupying their newly renovated house. However, the bathroom, measuring 10ft by 16ft, is still covered with tiles. If the tiles they desire measure 2/5 ft by 2/5ft, how many tiles will they need to cover the bathroom floor?

Correct answer:

n =  1000

Step-by-step explanation:

a=10 ft b=16 ft x=52=0.4 ft  n1=a/x=10/52=10:52=10 25=210 5=250=25 n2=b/x=16/52=16:52=16 25=216 5=280=40  n=n1 n2=25 40=1000

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