Iam somebody and i think i know the answer but i dont want it to be wrong so here it is

the table below shows the data for a random sample of fish that were collected from and later released into a lake:

type of fish catfish grass carp bluegill
number of fish 52 61 87

how many grass carps are estimated to be present if a sample of 800 fish is collected from the lake?
122
148
244
348

Okay so n is going to represent our first number. since the second number of five times greater than n, the second number will be represented as 5n. for us to figure out the two  numbers we need to have  the value of n first. this is going to be done by adding the two numbers together, n and 5n. it can be simplified as 6n, which the problem states is equal to 72. divide 72 by 6n and you can solve for n.  n+5n=726n=72n=(72/6)n=12  now that we know the value of n, we have to multiply 5 times 12 which equals 60. so our two numbers/integers are 12 and 60