Question:

Find the ratio of the following:
(a) 30 minutes to 1.5 hours
(b) 40 cm to 1.5 m
(c) 55 paise to ₹1
(d) 500 mL to 2 litres

Updated On: Dec 17, 2024
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Solution and Explanation

(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 =3090\frac{ 30}{90}
=13= \frac{1}{3}
=1:3= 1:3


(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
40⇒ 40 cm: 150 cm
=40150= \frac{40}{150}

=415= \frac{4}{15}
=4:15= 4:15


(c) 55 paise to Re. 1
Re. 1 = 100 paise
Now, ratio of 55 paise to Re. 1 = 55 paise: 100 paise
55100⇒ \frac{55}{100}

=1120= \frac{11}{20}
=11:20= 11:20


(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 = 5002000\frac{500}{2000}
=14= \frac{1}{4}
=1:4= 1:4

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