In a town, 20% of the population migrated to another city. Later, 25% of the remaining population left due to lack of jobs.
If the final population is 48,000, what was the original population?
Show answer & explanation
Correct answer: A
Explanation
First, 20% left ⇒ Remaining = 80%
Then, 25% left ⇒ Remaining = 75%
Final Population = 48,000
According to the formula:
Final = Original × 0.8 × 0.75
0.8 × 0.75 = 0.6
Original × 0.6 = 48,000
Original = 48,000 / 0.6 = 80,000