Ex 12.1, 7 Find the ratio of the following: (a) 30 minutes to 1.5 hours Here, We convert hours into minutes 1.5 hours = 1.5 × 60 minutes = 15/10 × 60 = 15 × 6 = 90 minutes So, Ratio = (30 𝑚𝑖𝑛𝑢𝑡𝑒𝑠)/(90 𝑚𝑖𝑛𝑢𝑡𝑒𝑠) = 30/90 Cancelling 0s = 3/9 = 1/3 ∴ Required ratio = 1 : 3

Next: Ex 12.1, 7 (b) → Ask a doubt

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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