Alex the plumber requires 6 lengths of cooper tubing to finish a fire sprinkler system. The length required are 3 at 2 feet, and 3 at 16 inches. How much will be leftover for the next job if he starts with a 16 foot long tube?

Question

cwrw238 · Answer

first work out the  total length of the tubes he uses
= 3 * 2 + 3 * 1 ft 4 ins

cwrw238 · Answer

then subtract this from 16

ribhu · Answer

first of all 16 inches = 4/3 feets (since 12 inces = 1 feet)
so the total length would be
3*2 (feet) = 6 feets
+ 3*4/3 = 4 feets
total becomes 10 feets
so the pipe remaining would be 6 feets

cwrw238 · Answer

hmm...

anonymous · Answer

nice!

ribhu · Answer

@katlin95 did u understand it thoroughly?

anonymous · Answer

yes i did!

cwrw238 · Answer

@ribhu - I'm glad you asked that last question