Question

The population of blackbirds in a park is counted every year.

the population decreases by 24% to 323
what was the original population?

Answer 1

the original population was 425

Explanation:

Answer 2

425

Explanation:

Let the original population of blackbirds be x.

Original population decreases by New population

100 24 76

x 24 323

Now we can make an expression like this.

100 ⇒ 76

x ⇒ 323

And now let us use cross multiplication and solve for x.

Let us solve it now.

323 × 100 = 76x

32300 = 76x

425= x