mackle34
17.06.2021 •
Mathematics
out of some students appeared in an examination 80% passed in mathematics 75% passed in english and 5% failed in both subjects if 3000 of them were passed both subjects how many students were appeared i the examination find by using a venn diagram
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Ответ:
5000 students appeared in the examination.
Step-by-step explanation:
We solve this question using Venn probabilities.
I am going to say that:
Event A: Passed in Mathematics
Event B: Passed in English.
5% failed in both subjects
This means that 100 - 5 = 95% pass in at least one, which means that
80% passed in mathematics 75% passed in english
This means that
Proportion who passed in both:
Considering the values we have for this problem
3000 of them were passed both subjects how many students appeared in the examination?
3000 is 60% of the total t. So
5000 students appeared in the examination.
Ответ:
10 laps
Step-by-step explanation:
Make the fractions of like denominators
Put into an improper fraction for simple division
Denominators cancel out
10 / 1
Simplify
10