Question

in a group of 50 students 20 students study subject A 25 students study subject B and 20 students study subjects c 10 students study subject both a and b and 5 students study subject both B and C and 7 student study subject both a and c and 2 students study subject all three subject find find students who study subject a only​

Answer 1

Answer:

only one student because 19 student study a and other subject from a

Answer 2

Answer:

3

Step-by-step explanation:

no. of children studying subject A= 20

no. of children studying both subject A and B= 10

no. of children studying both subject A and C= 7

so 17 students study a with any other subject...

therefore, 20-17=3

so 3 students study only subject A

hope it helps...

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