Thomas Malthus, the British clergyman turned economist, predicted that the planet would not be able to support the human population for long. His explanation was that human population grows at a geometric rate, while the food supply grows only at an arithmetic rate.Which one of the following, if true, would not undermine the thesis offered by Malthus?

Animals in general are shrewd in proportion as they cultivate society. Elephants and beavers show the greatest signs of this sagacity when they are together in large numbers, but when man invades their communities they lose all their spirit of industry. Among insects, the labours of the bee and the ant have attracted the attention and admiration of naturalists, but all their sagacity seems to be lost upon separation, and a single bee or ant seems destitute of every degree of industry. It becomes the most stupid insect imaginable, and it languishes and soon dies.Which of the following can be inferred from the above passage?

Garry drove from a certain place say X to a certain place say Y at an average speed of 40 km. He took rest over there for some time and again drove from place Y to place X at an average speed of 50 km/hr. The distance between place X and place Y is 100 km. What is Garry's average speed per hour for the round trip?