Answer:
$1500
Step-by-step explanation:
let the cost of the apartment = x
Hence the cost of the car is [tex]\frac{9}{10} \times x[/tex]
also given the cost of car=18000
Hence
[tex]18000= \frac{9x}{10}[/tex]
[tex]x= \frac{18000 \times 10}{9}[/tex]
[tex]x= 2000 \times 10[/tex]
[tex]x= 20000[/tex]
Motorcylce cost = [tex]\frac{1}{5}[/tex] of Cost of apartment
= [tex]\frac{1}{5} \times 20000[/tex]
= [tex]4000[/tex]
Also Motorcylce cost=[tex]\frac{4}{5}[/tex] of the cost of 100 soccer balls.
Hence
4000= [tex]\frac{4}{5}[/tex] x (cost of 100 soccer balls.)
(cost of 100 soccer balls.)= [tex]\frac{4000 \times 5}{4}[/tex]
(cost of 100 soccer balls.)= [tex]1000 \times 5[/tex]
cost of 100 soccer balls= [tex]5000[/tex]
cost of 1 soccer balls = [tex]\frac{5000}{100}[/tex]
cost of 1 soccer balls = 50
cost of 30 soccer balls = 50 x 30
cost of 30 soccer balls = 1500
Hence the cost of 30 balls is $1500
