Question

Can anyone please answer this question. It's from the chapter - Compound Interest.

Answer 1

in,4000 10%=400
so,at the end of first year there are 3600 workers.
in,3600 5%=180
so,at the end of second year there are 3420 workers.
in 3420 15% =513
so, at the end of third year there are 3933 workers.
in forth year there are 3933 workers.