Question

15. Ralph likes 25 but not 24; he likes 400 but not 300; he likes 144 but not 145. Which does he like:
10 50 124 200 1600

Answer 1

1600 based on the fact Ralph likes numbers that are perfect squares

Answer 2

well what abt ...................in a class with a certain number of students , if one student weighing 50kg is added then average weight of class incereases by 1 kg ,if one more student weighin 50kg is added then the average weight of class increasses by 1.5kg over the original average? what isthe original average weight (in kg) of the class?