in a class of 100students, 50 arre studying Geography, 40 are studying mathematics while 20 are studying both.Find the probabili
ty that the student chosen at random is studying neither geography nor mathematics
1 answer:
Answer:
40% or 40/100 which reduces to 2/5
Step-by-step explanation:
total of 100 students
20 are studying both...
only geography : 50 - 20 = 30
only math : 40 - 20 = 20
geography + math + both + neither = 100
30 + 20 + 20 + x = 100
60 + x = 100
x = 100 - 60
x = 40....so 40 out of 100 students are studying neither geography or math.
P(neither math or geography) = 40/100 = 0.4 = 40% <==
You might be interested in
Answer:
36.25 ez I’m big brain
Step-by-step explanation:
Answer:
146.5 sq. feet.
Step-by-step explanation:
Area of the deck = Large Square (with 15 ft side) - Circular Pool (with radius 10/2=5)
Large Square area = 
Circular Pool area = 
Thus, area of deck surrounding pool =
sq. feet
Answer:
-7× 2 +3= 17
-7×0+3=3
-7×5+3= -32
Answer:a)9
I think
Step-by-step explanation:
Answer:
5
Step-by-step explanation: