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1.Find the ratio of the following:
(a) speed of a cycle 15 km per hour to the speed of scooter 30 km per hour.

(b) 5 m to 10 km

(c) 50 paise to ₹ 5


Answer :

(a)Given, Speed of cycle : Speed of Scooter = 15 km per hour : 30 km per hour

\(\Rightarrow\) 15 :30

\(\Rightarrow\) 1:2

Hence we get the ratio as 1 : 2

(b)Given, 5 m to 10 km

\(\Rightarrow\) 5 m : 10 \(\times\) 1000 m [∵ 1 km = 1000 m]

\(\Rightarrow\) 5 m : 10000 m

\(\Rightarrow\) 1 : 2000

Hence, the ratio = 1 : 2000

(c)Given, 50 paise to ₹ 5

\(\Rightarrow\) 50 paise : 5 \(\times\) 100 paise [∵ ₹ 1 = 100 paise]

\(\Rightarrow\) 50 paise : 500 paise

Hence we get the ratio as 1 : 10

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