The Grandest Ever Grandfather Clock

clock-5.jpg

The grandfather clock was too tall for the shelf, so it stood on the floor by the door.

clock-5.jpg 1. What percentage of the floor space did the grandfather clock occupy if it measured 25 cm wide x 25 cm long and the floor was 5 m x 5 m ?

clock-5.jpg 2. The grandfather clock chimed once every 15 minutes. How often is that in 24 hours ?

clock-5.jpg 3. Work out the face of the grandfather clock if it measured 15 cm across the diameter.

clock-5.jpg 4. The grandfather clock’s pendulum was 3 / 5 ths the size of the height of the clock. If the grandfather clock was 2 m high, how long was the pendulum ?

clock-5.jpg 5. Work out the volume of the grandfather clock if it measured 2 m high x 50 cm wide x 30 cm deep.

clock-5.jpg 6. The grandfather clock was wound up every day for 3 minutes – how long did my Grandfather spend winding up the clock in one week ?

clock-5.jpg 7. The time on the grandfather clock read 8 o’ clock in the morning. What time did it read after 5 hours ?

© Jacqueline Richards 2007

Answers :

1. (25 x 25 = 625) / (500 x 500 = 250, 000) = 0.0025 = 0.25%

2. 24 x 4 = 96

3. 3.14 x 7.5 x 7.5 = 176.625 sq cm

4. 200 / 5 x 3 = 120 cm

5. 200 x 50 x 30 = 300 , 000 cubic cm

6. 3 x 7 = 21 mins

7. 1 p.m.

Advertisements
%d bloggers like this: