Check sibling questions

Ex 2.2, 10 - Chapter 2 Class 8 Linear Equations in One Variable

Last updated at March 23, 2023 by

Ex 2.2, 10 - The number of boys and girls in a class are in ratio 7:5

Ex 2.2, 10 - Chapter 2 Class 8 Linear Equations in One Variable - Part 2

Get live Maths 1-on-1 Classs - Class 6 to 12

Book 30 minute class for β‚Ή 499 β‚Ή 299

Transcript

Ex 2.2, 10 The number of boys and girls in a class are in the ratio 7 : 5. The number of boys is 8 more than the number of girls. What is the total class strength?Given that Number of Boy’s and Girl’s in a class are in the ratio 7:5 (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π΅π‘œπ‘¦π‘ )/(π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ πΊπ‘–π‘Ÿπ‘™π‘ )=7/5 Let the number of boys in the class = 7x & the number of girls in the class = 5x Given that number of boys is 8 more than the number of girls. Number of Boys = Number of Girls + 8 7x = 5x + 8 7x βˆ’ 5x = 8 2x = 8 x = 4 Therefore, Number of Boys = 7x = 7 Γ— 4 = 28 & Number of Girls = 5x = 5 Γ— 4 = 20 Total class strength = Number of boys + Number of Girls = 28 + 20 = 48 Students

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.