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2 years ago

Altogether in a school there are 240 people.

Mathematics

1 answer:

deff fn [24]2 years ago

6 0

Answer:

(i) 96 male

(ii) 12 female staff

Step-by-step explanation:

Population = 240

220 students, 20 staff

40% of the population is male (student and staff)

55% of the population are female <u>students</u>

40 + 55 = 95%

95% of the whole population is known, 5% are the female staff based on the problem.

240 x 0.4 = 96

240 x 0.05 = 12

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$f_h=\lambda g_h$

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$\implies \frac{2}{3}rh=\frac{r}{3h}(2r^2+h^2)$

$\implies h^2=2r^2$

Substitute this value in (1) we get,

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