First, take downstream speed as (b + c) and upstream as (b – c). Set up two equations from given distances and times, then add them to eliminate 'c' and find 'b'. But honestly, after whole day solving these in my Kota room, I only see numbers—not any boat. My real current is the train whistle outside, reminding me how far I am from home in Nagaland.
#exams#study
Jump in to reply — no account needed.