Question

Find the ratio of the following:
(a) 30 minutes to 1.5 hours
(c) 55 paise to ruppe 1

(b)40 cm to 1.5 m(d)500 mL to 2 litres
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Answer 1

Answer:

1.30 : 1.5

First we need to convert the given ratio into fraction,

= 30/15, [divide both the numerator and denominator by 15 since, the h.c.f. of 30 and 15 is 15]

= 2/1

= 2 : 1

2.1.5 m=1500cm

the ratio 40:1500

2:75

3.You have to equal the unit first

as 1 Rupee = 100 paise

so,55paise: 100paise

= 11: 20

4.500 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 = 500/2000 = 1/4 = 1 : 4