# Where will the hand of a clock stop if it

(a) starts at 12 and makes 1/2 of a revolution, clockwise?

(b) starts at 2 and makes 1/2 of a revolution, clockwise?

(c) starts at 5 and makes 1/4 of a revolution, clockwise?

(d) starts at 5 and makes 3/4 of a revolution, clockwise?

**Solution:**

We will be using the concepts of Revolution and Clockwise Rotation to solve this.

(a) When the clock hand starts from 12 and makes ½ of a revolution, the clock hand stops at 6.

1 revolution = 12 hours

1/2 revolution = 6 hours

Hence, the clock will land at 6.

(b) When the clock hand starts from 2 and makes ½ of a revolution, the clock hand stops at 8

1 revolution = 12 hours

1/2 revolution = 6 hours

Hence, the clock will land at 2 + 6 = 8.

(c) When the clock hand starts from 5 and makes 1/4 of a revolution, the clock hand stops at 8

1 revolution = 12 hours

1/4 revolution = 3 hours

Hence, the clock will land at (5 + 3) = 8.

(d) When the clock hand starts from 5 and makes 3/4 of a revolution, the clock hand stops at 2.

1 revolution = 12 hours

3/4 revolution = 9 hours

Hence, the clock will land at (5 + 7) = 12 and 2 hours added to 12 is 2.

NCERT Solutions for Class 6 Maths Chapter 5 Exercise 5.2 Question 2

## Where will the hand of a clock stop if it (a) starts at 12 and makes 1/2 of a revolution, clockwise? (b) starts at 2 and makes 1/2 of a revolution, clockwise? (c) starts at 5 and makes 1/4 of a revolution, clockwise? (d) starts at 5 and makes 3/4 of a revolution, clockwise?

**Summary:**

"(a) The clock hand stops at 6 if it starts at 12 and makes 1/2 of a revolution clockwise. (b) The clock hand stops at 8 if it starts at 2 and makes 1/2 of a revolution clockwise. (c) The clock hand stops at 8 if it starts at 5 and makes 1/4 of a revolution clockwise. (d) The clock hand stops at 2 if it starts at 5 and makes 3/4 of a revolution clockwise."