Question

a country population in 1994 was 215 million in 1996 it was 219 million estimate the population in 2007 round to nearest million

Answer 1

1996- 1994 =4yrs

in 4yrs population increases by 4million

2017-1994 =23yrs

23= (4 *5)+ 3

i.e 23yrs = = (20million + 215million) +3million= 238 million

240 million approx.