Question

hi p;s can someone help

Answer 1

$\huge\mathfrak\red{YOUR ANSWER}$

let us first find individual seats of each section being used..

1. first class section...

$\frac{5}{7} \: of \: 14 \: are \: being \: used$

soo seats being used...

$\frac{5}{7} \times 14 = 10$

10 seats in first class are being used

2. business class section...

$\frac{5}{16} \: of \: 64 \: are \: being \: used$

soo seats being used...

$\frac{5}{16} \times 64 = 20$

20 seats in business class are being used

3. In one economy class...

$\frac{5}{9} \: of \: 108 \: are \: being \: used$

soo seats being used...

$\frac{5}{9} \times 108 = 60$

60 seats in one economy class are being used..

in 4 economy classes = 60×4 = 240

In total 240 seats are being used in economy class...

total seats being used in plane...

10+20+240=270

total seats in plane...

14+64+(108×4)

78+432

=510

how much plane is occupied...

$100 \times \frac{270}{510} = 52.94.....percent$

it means ....

YES , the plane is occupied above half or 50%

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