A job must haul 312 loose cubic yards and each truck carries 12 loose cubic yards. How many full truck trips are needed?
Correct Answer
C) 26 trips
Trips are 312 / 12 = 26 trips.
Why This Is the Correct Answer
Trips are 312 / 12 = 26 trips.
Why the Other Options Are Wrong
Option A: 24 trips
haul truck trips, choice a: 24 trips omits a required add-on/subtraction; the numeric gap is 2.
Option B: 25 trips
haul truck trips, choice c: 25 trips omits a required add-on/subtraction; the numeric gap is 1.
Option D: 27 trips
haul truck trips, choice d: 27 trips adds an extra unstated add-on/subtraction; the numeric gap is 1.
Memory Technique
Remember haul truck trips as "base, adjustment, final unit"; the last unit should read 26 trips.
Reference Hint
Open Pipe and Excavation Contracting, 2011; use by topic index - earthwork volume / swell / shrink to confirm that Trips are 312 / 12 = 26 trips.
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