Math, asked by diptishajalmi2004, 7 months ago

Out of 80 student who secured first class marks in mathematics or in physics, 50 obtained first class marks in mathematics and 10 in both physics and mathematics.How many student secured first class marks in physics only ?​

Answers

Answered by lalitnit
5

Answer:

P(n) = P(A) + P(B) - P(A and B)

80 = 50 + x - 10

80 = 40 + x

x = 80 - 40 =40

The number of students secured first class marks in physics only is 40.

Answered by Anonymous
2

Answer:

P(n) = P(A) + P(B) - P(A and B)

80 = 50 + x - 10

80 = 40 + x

x = 80 - 40 =40

The number of students secured first class marks in physics only is 40.

hope it's help you ☺️❣️☺️❣️☺️

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