Page 136 - NUMINO Challenge_D1
P. 136
Problem solving
1 The clock below represents a total of 24 hours Key Points
and 60 minutes in 1 hour. When the clock reads
14:15, find the angle formed by the hands. Each angle between
two consecutive
notches is 15 .
24
18 6
12
2 The clock below represents a total of 9 hours Find the number of
and 45 minutes in 1 hour. The hour and minute times the hour and
hands overlap at 9 o'clock. At what time does minute hands overlap
this next happen again after 90 ’clock? in 9 hours.
891
72
63
54
133Measurement
1 The clock below represents a total of 24 hours Key Points
and 60 minutes in 1 hour. When the clock reads
14:15, find the angle formed by the hands. Each angle between
two consecutive
notches is 15 .
24
18 6
12
2 The clock below represents a total of 9 hours Find the number of
and 45 minutes in 1 hour. The hour and minute times the hour and
hands overlap at 9 o'clock. At what time does minute hands overlap
this next happen again after 90 ’clock? in 9 hours.
891
72
63
54
133Measurement
