Here's the question you clicked on:
abz_tech
puzzle: A number of aliens who have dropped in from another planet, emerge from the spacecraft. (i) There is more than one alien (ii) each alien has the same number of fingers (iii) each alien has at least one finger on each hand (iv) the total number of fingers of all the aliens is between 200 and 300 (v) if you knew the total number of fingers of all the aliens, you would know how many aliens there are. How many aliens are there?
how many hands per alien?
not said, i would assume 2
they're aliens, i don't think we can assume that