3 girls and 2 boys took part in a quiz. the girls scored a total of 21 marks and the boys scored a total of 19 marks what was th
2 answers:
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Answer:
37.5
Step-by-step explanation:
First you have to realize that these are similar triangles.
You can do a easy cross multiplication with these types of questions by forming an equation with the similar angles.
put the smaller above the decimal and the bigger one below like this.
=
Now cross multiply
8x=300
x=37.5
