(a) 30 minutes to 1.5 hour
1.5 hours = 1.5 x 60 = 90 minutes [∵ 1 hour = 60 minutes]
Now, ratio of 30 minutes to 1.5 hour = 30 minutes: 1.5 hour
30 minutes: 90 minutes =
(b) 40 cm to 1.5 m
1.5 m = 1.5 x 100 cm = 150 cm [∵ 1 m = 100 cm]
Now, ratio of 40 cm to 1.5 m = 40 cm: 1.5 m
cm: 150 cm
(c) 55 paise to Re. 1
Re. 1 = 100 paise
Now, ratio of 55 paise to Re. 1 = 55 paise: 100 paise
(d) 500 ml to 2 liters
2 liters = 2 x 1000 ml = 2000 ml [∵ 1 litre = 1000 ml]
Now, ratio of 500 ml to 2 liters = 500 ml: 2 liters
500 ml: 2000 ml =
Complete the drawing shown in Fig. 9.14 to indicate where the free ends of the two wires should be joined to make the bulb glow