Question 58

The minute hand of a watch is 1.5 cm long. How far does its tip move in 40 minutes?

In this case, the radius of the circle traced by the minute hand is 1.5 cm.

Circumference = 2πr = 2π(1.5) = 3π cm

The minute hand covers this distance in 60 minutes.

Let x be the distance covered by the tip of the minute hand in 40 minutes.

$$\dfrac{x}{3\pi\ }=\dfrac{40}{60}$$

x = 2π = 6.28 cm

Therefore, the tip of the minute hand moves a distance of 6.28 cm in 40 minutes.

The answer is option A.

Was this solution helpful?

Get AI Help

Create a FREE account and get:

  • Download Maths Shortcuts PDF
  • Get 300+ previous papers with solutions PDF
  • 500+ Online Tests for Free

Related Formulas With Tests

Book Free CAT Mentorship

Get personalized CAT strategy from a 99%iler

500+ students mentored
CAT mentor

Join CAT 2026 course by 5-Time CAT 100%iler

Start your IIM journey with the right preparation and crack CAT 2026.

Ask AI