In a school, 33 classrooms are required if each class has 32 pupils. How many
classrooms would be required if the class
size has reduced to 22?

48

Step-by-step explanation:

Multiply 33 by 32 to figure out how many students in all.

Then you divide the answer by 22

33x22=726

1,056/22=48

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.