NCERT Figure it Out 7 - Other bases for 25 - A Story of Numbers
Question: Write the base-10 Hindu numeral 25 as base-8, base-5, and base-2 numerals.
Answer: Base-8: 31_8; base-5: 100_5; base-2: 11001_2.
Full step-by-step NCERT solution with diagrams on Something by Zero.