Gantham, heldy and jacson are three towns.
gantham is due east of jacson and heldy is 50km due south of jacson.
the distance between gantham and heldy is 82km.
work out the bearing of heldy from gantham.

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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