Eight out of ten fish are trout. How many trout are there out of 40 fish?

2 Answers
Dec 9, 2016

Out of these 40 fish 32 are trout.

Explanation:

The ratio relationship for this is 8:10 -> t:40 where t is the number of trout. Turning this into an equation and solving for t gives:

8/10 = t/40

40*8/10 = 40*t/40

320/10 = cancel(40)*t/cancel(40)

32 = t

Dec 9, 2016

32

Explanation:

40 is the fourth multiple of 10, which means that 10 xx 4 = 40.

Then, if 8 out of 10 fish are trout, the number of trout in 40 fish will be the fourth multiple of 8, which is equal to 8 xx 4 = 32.