Bank Preparation
Bank Math
ব্যাংক নিয়োগ
Combined Bank
Officer Cash (Sonali Bank, BD Development Bank , BD Krishi Bank 12-10-2018)
Time and Speed - Train and Boat
Officer Cash (Sonali Bank, BD Development Bank , BD Krishi Bank 12-10-2018)
A man takes 3 hours 45 minutes to row a boat 22.5 km downstream of a river and 2 hours 30 minutes to cover a distance of 10 km up stream . Find the speed of the river current in km /hr.
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
ক (1 km/hr)
