Question

Between 2000 and 2015 ​, the number of twin births in a certain country increased by 11​%, to approximately128,760 . About how many twin births were there in​ 2000?

Answer 1

116000

Explanation:

The number of twins in 2000 is x

the number increases by 11% to year 2015

x(1+11/100 )=128760

x+0.11x=128760

1.11x=128760

x=128760/1.11

x=116000