Ncert Solutions For Class 6 Maths Ex 5.2

Ncert Solutions For Class 6 Maths Chapter 5 Ex 5.2

Question 1:

As a clockwise revolution, what fraction does the hour hand of a clock turn through, when it moves from:

(a) 3 to 9

(b) 4 to 7

(c) 7 to 10

(d) 12 to 9

(e) 1 to 10

(f) 6 to 3

Answer:

(a) \(\frac{1}{2}\) or two right angles.

(b) \(\frac{1}{4}\) or one right angle.

(c) \(\frac{1}{4}\) or one right angle.

(d) \(\frac{3}{4}\) or three right angles.

(e) \(\frac{3}{4}\) or three right angles.

(f) \(\frac{3}{4}\) or three right angles.

 

Question 2:

Where will the hand of a clock stop if it is:

(a) Starting at 12 and make \(\frac{1}{2}\) of a revolution, which is clockwise?

(b) Starting at 2 and makes \(\frac{1}{2}\) of a revolution, which is clockwise?

(c) Starting at 5 and makes \(\frac{1}{4}\) of a revolution, which is clockwise?

(d) Starting 5 and makes \(\frac{3}{4}\) of a revolution, which is clockwise?

Answer:

(a) At 6

(b) At 8

(c) At 8

(d) At 2

 

Question 3:

If you stand facing following cases, what fraction of revolution would have you been moved:

(a) East and turn clockwise to face north?

(b) South and turn clockwise to face east?

(c) West and turn clockwise to face east?

Answer:

(a) \(\frac{3}{4}\)

(b) \(\frac{3}{4}\)

(C) \(\frac{1}{2}\)

 

Question 4:

Find the number of right angles turned through by the hour hand of a clock when it goes from:

(a) 3 to 6

(b) 2 to 8

(c) 5 to 11

(d) 10 to 1

(e) 12 to 9

(f) 12 to 6

Answer:

(a) One right angle

(b) Two right angles

(c) Two right angles

(d) One right angle

(e) Three right angles

(f) Two right angles

 

Question 5:

How many right angles do you make if you start facing:

(a) South and turn clockwise to west?

(b) North and turn anti-clockwise to east?

(c) West and turn to west?

(d) South and turn to north?

Answer:

(a) One right angle

(b) Three right angles

(c) Four right angles

(d) Two right angles

 

Question 6:

Where will the hour hand of a clock stop if it starts:

(a) From 6 and turns through 1 right angle?

(b) From 8 and turns through 2 right angles?

(c) From 10 and turns through 3 right angles?

(d) From 7 and turns through 2 straight angles?

Answer:

(a) At 9

(b) At 2

(c) At 7

(d) At 7

 

Question 7:

Which direction will you face if you start facing:

(a) East and make \(\frac{1}{2}\) of a revolution clockwise?

(b) East and make \(1\frac{1}{2}\) of a revolution clockwise?

(c) West and make \(\frac{3}{4}\) of a revolution, clockwise?

(d) South and make one full revolution?

Answer:

(a) West

(b) West

(c) North

(d) South