Species X has an initial population of 50 individuals and grows continuously at rate 0.07 day−1. Species Y starts with 200 individuals but declines continuously at rate 0.03 day−1. The two populations are equal at time t0. Ten days after t0, what is the approximate ratio population of Ypopulation of X?
a) 2.02
b) 2.72
c) 1.49
d) 2.43