The numeratorof a fraction is 5 more than its denominator if 3 is added to both the numerator and denominator of the fraction reduces to 4/3 find the original fraction if x is its denominator

If x is denominator, numerator is x + 5

If 3 is added to both the numerator and denominator, then

x + 5+3 / x +3 = 4/3

3(x+8) = 4(x+3)

3x + 24 = 4x +12

3x-4x = 12-24

x = 12

x = 12+5 = 17

So, (x+5+3)/x+3

= 20/15 = 4/3

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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step-by-step explanation: