thehelpertohelp thehelpertohelp

11-07-2021
Mathematics

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What do I do for this question

What do I do for this question class=

Respuesta :

devishri1977 devishri1977

11-07-2021

Answer:

Step-by-step explanation:

a + 9 = 15

a = 15 - 9

a = 6

c + 9 = 16

c = 16 - 9

c = 7

d = c + 9

= 7 + 9

= 16

e = d + 15

= 16 + 15

e = 31

P(selecting a boy) = total boy /total pupils = 16/31

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