The population of a city increased by 10% in the first year and decreased by 10% in the second year, ending at 99000. What was the population at the start of the first year?

Question

Accepted Answer

100000. Factor = 1.10 x 0.90 = 0.99. Original x 0.99 = 99000, so original = 99000/0.99 = 100000.

The population of a city increased by 10% in the first year and decreased by 10% in the second year, ending at 99000.
What was the population at the start of the first year?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 8 Percentage Increase and Decrease practice

The population of a city increased by 10% in the first year and decreased by 10% in the second year, ending at 99000.What was the population at the start of the first year?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 8 Percentage Increase and Decrease practice

The population of a city increased by 10% in the first year and decreased by 10% in the second year, ending at 99000.
What was the population at the start of the first year?