UPSC Prelims 2020 · CSAT (Paper 2) · Q75
General Mental Ability
Hard · Number theory
How many pairs of natural numbers are there such that the difference of whose squares is 105?
UPSC Prelims 2020 · CSAT (Paper 2) · Q75
Hard · Number theory
How many pairs of natural numbers are there such that the difference of whose squares is 105?