Question

in 1965, the population of country A was 2 714 000. in 2015 the population was 3 663 900. write the population in 2015 correct to 3 significant figures?​

Answer 1

BEST ANSWER :

(iv) a) 3.66 × 10^6

b) 2.714 × 10^6

(iii) 35%.

by question known :

(i) a) 3663900 = 3.6639 × 10^6

= 3.66 × 10^6

{ keep three significant digit }

b) 2714000 = 2.714 × 10^6

(iii) (3663900 - 2714000) ÷ 2714000 × 100%

= 949900 = 2714000 × 100%

= 0.35 × 100%

=35%

.°. the percentage increase in the population from 1965 to 2015 is 35%