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Ex 12.1, 2 - Out of 30 students in a class, 6 like football,12 cricket

Ex 12.1, 2 - Chapter 12 Class 6 Ratio And Proportion - Part 2
Ex 12.1, 2 - Chapter 12 Class 6 Ratio And Proportion - Part 3

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Ex 12.1, 2 Out of 30 students in a class, 6 like football, 12 like cricket and remaining like tennis. Find the ratio of (a) Number of students liking football to number of students liking tennis. Total number of students = 30 Students liking football = 6 Students liking cricket = 12 Total number of students = Students like football + Students liking cricket + Students liking tennis 30 = 6 + 12 + Students liking tennis 30 = 18 + Students liking tennis Students liking tennis = 30 βˆ’ 18 Students liking tennis = 12 Ratio = (𝑆𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘™π‘–π‘˜π‘–π‘›π‘” π‘“π‘œπ‘œπ‘‘π‘π‘Žπ‘™π‘™)/(𝑆𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘™π‘–π‘˜π‘–π‘›π‘” 𝑑𝑒𝑛𝑛𝑖𝑠) = 6/12 = 1/2 ∴ Required ratio is 1 : 2 Ex 12.1, 2 Out of 30 students in a class, 6 like football, 12 like cricket and remaining like tennis. Find the ratio of (b) Number of students liking cricket to total number of students. Ratio = (𝑆𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘™π‘–π‘˜π‘–π‘›π‘” π‘π‘Ÿπ‘–π‘π‘˜π‘’π‘‘)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ 𝑠𝑑𝑒𝑑𝑒𝑛𝑑𝑠) = 12/30 = 6/15 = 2/5 ∴ Required ratio is 2 : 5

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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.