Question

11. The average height of 4 buildings is

20 meters. If 3 of the buildings are
each 16 meters tall, what is the
height, in meters, of the fourth
building?
A. 32
B. 28
C. 24
D. 22

Answer 1

32

Explanation:

avg=20m

total height= 20*4 =80

three building height =16 *3=48

4th=80-48=32