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Ex 12.1, 11 - Out of 1800 students in a school, 750 opted basketball

Ex 12.1, 11 - Chapter 12 Class 6 Ratio And Proportion - Part 2
Ex 12.1, 11 - Chapter 12 Class 6 Ratio And Proportion - Part 3 Ex 12.1, 11 - Chapter 12 Class 6 Ratio And Proportion - Part 4

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Ex 12.1, 11 Out of 1800 students in a school, 750 opted basketball, 800 opted cricket and remaining opted table tennis. If a student can opt only one game, find the ratio of (a) Number of students who opted basketball to the number of students who opted table tennis.Finding number of Students who opted for table tennis Total number of students = Students who opted basket ball + Students who opted cricket + Students who opted table tennis 1800 = 750 + 800 + Students who opted table tennis 1800 = 1550 + Students who opted table tennis 1550 + Students who opted table tennis = 1800 Students who opted table tennis = 1800 βˆ’ 1550 Students who opted table tennis = 250 Ratio = (𝑆𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘€β„Žπ‘œ π‘œπ‘π‘‘π‘’π‘‘ π‘π‘Žπ‘ π‘˜π‘’π‘‘ π‘π‘Žπ‘™π‘™)/(𝑆𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘€β„Žπ‘œ π‘œπ‘π‘‘π‘’π‘‘ π‘‘π‘Žπ‘π‘™π‘’ 𝑑𝑒𝑛𝑛𝑖𝑠) = 750/250 Cancelling 0s = 75/25 = 15/5 = 3/1 ∴ Required ratio is 3 : 1 Ex 12.1, 11 (b) Number of students who opted cricket to the number of students opting basketball.Ratio = (𝑆𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘€β„Žπ‘œ π‘œπ‘π‘‘π‘’π‘‘ π‘π‘Ÿπ‘–π‘π‘˜π‘’π‘‘)/(𝑆𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘€β„Žπ‘œ π‘œπ‘π‘‘π‘’π‘‘ π‘π‘Žπ‘ π‘˜π‘’π‘‘ π‘π‘Žπ‘™π‘™) = 800/750 Cancelling 0s = 80/75 = 16/15 ∴ Required ratio is 16 : 15 Ex 12.1, 11 (c) Number of students who opted basketball to the total number of studentsRatio = (𝑆𝑑𝑒𝑑𝑒𝑛𝑑𝑠 π‘€β„Žπ‘œ π‘œπ‘π‘‘π‘’π‘‘ π‘π‘Žπ‘ π‘˜π‘’π‘‘ π‘π‘Žπ‘™π‘™)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ 𝑠𝑑𝑒𝑑𝑒𝑛𝑑𝑠) = 750/1800 Cancelling 0s = 75/180 = 25/60 = 5/12 ∴ Required ratio is 5 : 12

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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.