MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 135
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
Road maintenanceIn 1913, under the headline Automobilism: the Wear of Roads and Trackways, the English newspaper, The Times, published an early comment on the expense of the construction and maintenance of roads as traffic became more mechanical and of greater volume. The correspondant pointed out that although a reasonable average width of a main road was 18 feet, the wheels of the vehicles together touched only about 6 inches of the surface. Thus, to save the expense of renewing the surface of the whole 18ft width, he offered the solution that roads be prepared with plateways. These would provide four specially prepared tracks (two in each direction) to take the wear from the wheels. |