Question

A clock has hour hand of 10cm.What will ne the dostance covered by it in 48hours

Answer 1

circumference of a circle =2πr Radius=10 cm π=22/7 therefore 2×22/7×10=62.8 so the hour hand covers 62.8 cm in 12 hours required hours is 48 therefore 62.8×4=251.2 thus the hour hand will cover 251.2 cm in 48 hours approxx