PrepTest 60, Section 1, Question 16
Over the course of one day, a landscaper will use a truck to haul exactly seven loads�three loads of mulch and four loads of stone. The truck's cargo bed will be cleaned in between carrying any two loads of different materials. To meet the landscaper's needs as efficiently as possible, the following constraints apply:
Over the course of one day, a landscaper will use a truck to haul exactly seven loads�three loads of mulch and four loads of stone. The truck's cargo bed will be cleaned in between carrying any two loads of different materials. To meet the landscaper's needs as efficiently as possible, the following constraints apply:
Over the course of one day, a landscaper will use a truck to haul exactly seven loads�three loads of mulch and four loads of stone. The truck's cargo bed will be cleaned in between carrying any two loads of different materials. To meet the landscaper's needs as efficiently as possible, the following constraints apply:
Over the course of one day, a landscaper will use a truck to haul exactly seven loads�three loads of mulch and four loads of stone. The truck's cargo bed will be cleaned in between carrying any two loads of different materials. To meet the landscaper's needs as efficiently as possible, the following constraints apply:
The cargo bed cannot be cleaned more than three times.
The fifth load must be mulch.
If the cargo bed is cleaned exactly twice, which one of the following must be true?
The second load is stone.
The third load is mulch.
The third load is stone.
The sixth load is mulch.
The seventh load is mulch.
Explanations
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