A blacksmith smelts 28 bars every 66 seconds. How long does it take to smelt 10,000?

Question

There is no downtime, every 66 seconds, 28 bars are made. This continues until the required 10,000 are completed.

Answer 1

Proportion:  28 is to 66 as x is to 10000

 

28/66 = x/10000

 

66x = 280000

 

x = 280000/66

 

x = 4242.424242424242 seconds

 

There are 60 seconds per minute:

 

x/60 will be minutes.. x = 70.70707070 minutes

 

There are 60 minutes per hours

divide by 60 again to get hours

 

x = 1.18 hours

 

(0.18 hours)(60 mins/hour) = 10.71 minutes

 

x = 1 hours 10.71 minutes

 

(0.71 minutes)(60 seconds/minute) = 42.42424242 seconds

 

x = 1 hour 10 minutes 42.42 seconds