Question

In a class, 20 students are 1.15m tall, 15 students are 1.20 m tall and 5 students are 1.25 m tall. what is the average height of the students in a class?​

Answer 1

Answer:

Generally, we use maps as a reference to show political boundaries, landforms, water bodies, and the positions of cities. Maps also help us to know the routes of an area, landmarks, location (latitudes and longitudes) of a building or things, etc.

Answer 2

Step-by-step explanation:

height of 20 students = 1.15m

height of 15 students = 1.20m

height of 5 students = 1.25m

total students = 20+15+5 = 40

Average height = 20× 1.15+ 15× 1.20+ 5× 1.25

-----------------------------------------

40

average height = 23+18+6.25

----------------------

40

average height = 47.25

------------

40

average height = 1.1825 m

average height of the students = 1.1825 m