Related Questions

Expert says 25% of of serious bicycle accidents involved head injury and that of all head injuries 80% are fatal. What percentage of serious bicycle accidents involve fatal head injuries?
A 16%
B 20%
C 55%
D 105%
Experts say that 25% of all serious bicycle accidents involve head injuries and of all such head injuries, 80% are fatal. What percentage of all serious bicycle accidents involve fatal head injuries?
A 6%
B 20%
C 55%
D 105%
Cars are safer than planes. Fifty percent of plane accidents result in death ,while only one percent of car accidents result in death . which of the following , if true, would most seriously weaken the argument above?
A Planes are inspected more often than cars.
B The number of car accidents is several hundred thousand times higher than the number of plane accidents.
C Pilots never fly under the influence of alchohol, while car drivers often do.
D Plane accidents are usually the fault of air traffic controllers, not pilots.
Ten new television shows appeared during the month of September. Five of the shows were sitcoms, three were hour-long dramas, and two were news-magazine shows. By January, only seven of these new shows were still on the air. Five of the shows that remained were sitcoms.
A Only one of the news-magazine shows remained on the air.
B Only one of the hour-long dramas remained on the air.
C At least one of the shows that was cancelled was an hour-long drama.
D Television viewers prefer sitcoms over hour-long dramas.
A motor pool has 300 vehicles of which 30% are trucks. 20% of all the vehicles in the motor pool are diesel, including 15 trucks. What percent of the motor pool is composed of vehicles that are neither trucks nor diesel?
A 165%
B 90%
C 65%
D 10%
The particular places where pedestrians are to cross the pavement are properly marked by the pavement marking known as
A stop lines
B turn markings
C crosswalk lines
D lane lines
When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel and $$\varphi $$ = Pressure angle)
A $$\frac{{\left( {{{\text{r}}^2} + {{\text{R}}^2}} \right)\cos \varphi }}{2}$$
B $$\frac{{\left( {{{\text{r}}^2} + {{\text{R}}^2}} \right)\sin \varphi }}{2}$$
C $$\frac{{\left( {{\text{r}} + {\text{R}}} \right)\cos \varphi }}{2}$$
D $$\frac{{\left( {{\text{r}} + {\text{R}}} \right)\sin \varphi }}{2}$$
The pedestrians must have to be very cautions while crossing the road.
A must had been
B ought be
C no improvement
D are required to be
Roads are highly unsafe for pedestrians. The underline word means ----.
A Rickshaw pullers
B Bus pessengers
C bicycles
D people walking on foot
Roads are highly unsafe for "pedestrians", The underlined word means
A Rickshaw pullerea
B Bus paseengers
C Bicycles
D people walking on foot

Next steps