Lập kế hoạch & Dự toánCâu 303 / 360
You take off 220 linear feet of pipe from the plans and add a 10% waste allowance. Pipe is stocked in 20-foot lengths. How many 20-foot lengths should you order?
a.11
b.12
c.13
d.13 (242 feet rounded up)
Giải thích
220 feet plus 10% is 242 feet; dividing by 20 gives 12.1 lengths, which rounds up to 13 whole sticks. You must round up to whole stock lengths since pipe is sold by the stick. Rounding up prevents ending a run one coupling short on install day.
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