Walkers

Walker, which makes 120 steps per minute, make distance from point A to point B for 55 minutes. The length of his step is 75cm. For how long does this distance go boy who will do 110 steps 60 cm long in a minute?

Correct result:

t =  75 min

Solution:

s=120 55 75/100=4950 m v=110 60/100=66 m/min t=s/v=4950/66=75 mins=120 \cdot \ 55 \cdot \ 75/100=4950 \ \text{m} \ \\ v=110 \cdot \ 60/100=66 \ \text{m/min} \ \\ t=s/v=4950/66=75 \ \text{min}



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