The short and long hands of a clock are 4 cm and 6 cm long respectivel

1.	The short and long hands of a clock are 4 cm and 6 cm long respectively. Find the sumof distances travelled by their tips in 48 hours.
Answer» The tips cover circular paths. The hour hand covers 4 complete circles in 2 days (48 hours)Distance = 2 x 22/7 x 4 x 4 = 100.57 cm The minute hand covers = 48 Circles in 2 days (Each hour = 1 circle)Distance = 2 x 22/7 x 6 x 48 = 1810.23 cm Total distance = 100.57 + 1810.23 = 1910.8 cm

The short and long hands of a clock are 4 cm and 6 cm long respectively. Find the sumof distances travelled by their tips in 48 hours.

Answer»

The tips cover circular paths. The hour hand covers 4 complete circles in 2 days (48 hours)Distance = 2 x 22/7 x 4 x 4 = 100.57 cm

The minute hand covers = 48 Circles in 2 days (Each hour = 1 circle)Distance = 2 x 22/7 x 6 x 48 = 1810.23 cm

Total distance = 100.57 + 1810.23 = 1910.8 cm