Passage 10
In 1919 Britain experienced its largest ever reduction in industrial working hours, to 48 per week.
In Dowie’s view the 48-hour week played a central role in Britain’s poor economic performance during
the 1920s. Dowie argued that the reduction, together with rapid wage growth, drove up prices.
However, Greasly and Oxley found that the First World War (1914-1918) constituted a more powerful
negative macroeconomic shock to Britain’s competitiveness. And Scott argues that Dowie’s thesis
ignores considerable evidence that hourly productivity improves when hours are reduced from a high
base level. Crucially, Dowie’s thesis does not acknowledge that hours were reduced to around 48 hours
a week for industrial workers in most industrialized nations at this time so far—undermining any
potential impact of reduced hours on industrial productivity relative to other nations.
1. Which of the following, if true, provides the strongest support for Scott’s argument?
A. Companies have generally found that part-time employees are less productive than full-time ones.
B. When the total number of hours worked at a company increases owing to the addition of more
employees, the usual result is improved productivity at the company.
C. When the total hours worked by all employees per week in two companies are equivalent, hourly
productivity tends to be equivalent as well.
D. Companies whose employees usually work a high number of hours tend to have greater total costs
than do similar companies whose employees work fewer hours.
E. Companies have found that total output per employee is not necessarily changed by reductions in the
number of hours worked per employee.
2. It can be inferred from the passage that in the view of Greasley and Oxley
A. a reduced workweek was ultimately beneficial to employees
B. the economic effects of the reduction in working hours in 1919 were brief
C. Britain became less economically competitive in the 1920s
D. reduced working hours were the primary cause of the economic changes observed by Dowie
E. the changes in economic performance in Britain in the 1920s were unforeseen
Passage 11
The finding that there were rock-melting temperatures on asteroids for sustained periods is
puzzling: asteroids’ heat source is unknown, and unlike planet-sized bodies, such small bodies quickly
dissipate heat. Rubin suggests that asteroids’ heat could have derived from collisions between asteroids.
Skeptics have argued that a single impact would raise an asteroid’s overall temperature very little and
that asteroids would cool too quickly between impacts to accumulate much heat. However, these
objections assumed that asteroids are dense, solid bodies. A recent discovery that asteroids are highly
porous makes Rubin’s hypothesis more plausible. When solid bodies collide, much debris is ejected,
dissipating energy. Impacts on porous bodies generate less debris, so more energy goes into producing
heat. Heat could be retained as debris fall back into impact craters, creating an insulating blanket.
1. The passage suggests that one factor that has made it difficult to account for the temperatures once
reached by asteroids is