 | Barnard Smith - Arithmetic - 1866 - 156 pages
...proportion? State the reason. 9 men were engaged to dig a trench, 3 ft. deep, 4J ft. wide, and 120 yds. long, in a certain time ; but before it was begun it was discovered that the trench must be 5ft. deep, 180yds. long, but only 4 ft. wide. How many men must be employed, in order that it may be... | |
 | John Barter (of the science and art coll, Plymouth.) - 1877 - 328 pages
...he gain per cent. ? 7. Nine men were engaged to dig a trench 3 ft. deep, 4J ft. wide, and 120 yds. long, in a certain time ; but before it was begun...but only 4 feet wide. How many men must be employed that it may be finished in time ? 8. Find the simple interest on .£387 10s. for 5J years, at 3^ per... | |
 | Palaestra Oxoniensis - 1884 - 204 pages
...he gain per cent. ? 8. Nine men were engaged to dig a trench 3 feet deep, 4-i- feet wide, and 1 20 yards long in a certain time ; but before it was begun...was discovered that the trench must be 5 feet deep, 1 80 yards long, but only 4 feet wide: how many men must be employed in order that it may be completed... | |
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... yards long, but only 4 feet wide: how many men must be employed in order that it may be completed in the required time ? 9. 