In a survey of 700 students in a college, 180 were listed as drinking Limca , 275 as drinking Mirinda and 95 were listed as drinking limca as well as Mirinda. Find how many students were drinking neither Limca nor Mirinda
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Answered by
37
Total students = 700
Students drinking Limca = 180
Students drinking Mirinda = 275
Students drinking both = 95
Total students drinking either Limca or Mirinda or Both = 550
Therefore students neither drinking Limca or MIrinda = 700 - 550
= 150
Students drinking Limca = 180
Students drinking Mirinda = 275
Students drinking both = 95
Total students drinking either Limca or Mirinda or Both = 550
Therefore students neither drinking Limca or MIrinda = 700 - 550
= 150
Answered by
36
Answer:
340 students were drinking neither Limca nor Mirinda
Step-by-step explanation:
Total number of students = 700
No. of students drinking limca i.e. n(Limca)=180
No. of students drinking Mirinda i.e.n(Mirinda) = 275
No. of students drinking limca as well as Mirinda i.e. n(Limca ∩ Mirinda) = 95
Total number of students drink limca , mirinda and both
n(A∪B) =n(A)+n(B)-n(A∩B)
n (Limica ∪ Mirinda)=180+275-95
n (Limica ∪ Mirinda)=360
Students were drinking neither Limca nor Mirinda = 700-360 = 340
Hence 340 students were drinking neither Limca nor Mirinda
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