Question

A town's population increased by 1500 people and then this new population decreased by 12% the town now had 60 less people then it did before the 1500 increases

Answer 1

Answer:

11500

Step-by-step explanation:

Let say town's  population  before the 1500 increases

= P

Then Population after increase by 1500 = P + 1500

Population decreased by 12 % = (12/100) (P + 1500)

population after decrease = (P + 1500) - (12/100) (P + 1500)

= (P + 1500)(0.88)

= 0.88P + 1320

Town now had 60 less people  = P - 60

P - 60 = 0.88P + 1320

=> 0.12P = 1380

=> P = 11500

town's  population  before the 1500 increases = 11500