Question

(14) In an aquarium, the number of star fish to the number of
gold fish was 1.5 : 2.5. There were 30 gold fish. After some
of the star fish died, the ratio became 0.5 : 1.5. How many star
fish died?


PLZ PLZ HELP ME , I NEED IT VERY MUCH . PLEASE HELP ME.​

Answer 1

Answer:

8

Step-by-step explanation:

let x be the number of starfish

→1.5/2.5 = x/30

→ x = 450/25 = 18

now, let the number of starfish left be y

→0.5/1.5 = y/30

→y = 150/15 = 10

Therefore, no. of dead starfish = x-y = 8