Check sibling questions

Ex 12.1, 1 - There are 20 girls and 15 boys in a class - Ex 12.1

Ex 12.1, 1 - Chapter 12 Class 6 Ratio And Proportion - Part 2

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


Transcript

Ex 12.1, 1 There are 20 girls and 15 boys in a class. (a) What is the ratio of number of girls to the number of boys? Number of girls = 20 Number of boys = 15 Ratio = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘”π‘–π‘Ÿπ‘™π‘ )/(π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘œπ‘¦π‘ ) = 20/15 = 4/3 ∴ Required ratio is 4 : 3 Ex 12.1, 1 There are 20 girls and 15 boys in a class. (b) What is the ratio of number of girls to the total number of students in the class?Total number of students = Number of girls + Number of boys = 20 + 15 = 35 ∴ Ratio = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘”π‘–π‘Ÿπ‘™π‘ )/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ 𝑠𝑑𝑒𝑑𝑒𝑛𝑑𝑠) = 20/35 = 4/7 ∴ Required ratio is 4 : 7

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

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.