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

Ex 12.1

Ex 12.1, 1

Ex 12.1, 2 Important

Ex 12.1, 3

Ex 12.1, 4 Important

Ex 12.1, 5 Important You are here

Ex 12.1, 6 (a)

Ex 12.1, 6 (b) Important

Ex 12.1, 6 (c)

Ex 12.1, 6 (d) Important

Ex 12.1, 7 (a) Important

Ex 12.1, 7 (b)

Ex 12.1, 7 (c) Important

Ex 12.1, 7 (d) Important

Ex 12.1, 8

Ex 12.1, 9

Ex 12.1, 10 Important

Ex 12.1, 11

Ex 12.1, 12 Important

Ex 12.1, 13 Important

Ex 12.1, 14

Ex 12.1, 15 Important

Ex 12.1, 16 Important

Last updated at May 29, 2023 by Teachoo

Ex 12.1, 5 Fill in the following blanks: 15/18 = ⎕/6 = 10/⎕ = ⎕/30 [Are these equivalent ratios?] 15/18 = "⎕" /6 15 × 6 ="⎕"× 18 "⎕"× 18 = 15 × 6 "⎕"= (15 × 6)/18 "⎕" = 15/3 "⎕"= 5 15/18 = 10/"⎕" 15 ×"⎕"= 10 × 18 "⎕"= (10 × 18)/15 "⎕"= (2 × 18)/3 "⎕"= 2 × 6 "⎕"= 12 15/18 = "⎕" /30 15 × 30 ="⎕"× 18 "⎕"× 18 = 15 × 30 "⎕"= (15 × 30)/18 "⎕"= (5 × 30)/6 "⎕"= 5 × 5 "⎕" = 25 Thus, 15/18 = ▭𝟓/6 = 10/▭𝟏𝟐 = ▭𝟐𝟓/30 Since all the ratios are same ∴ Yes, all these are equivalent ratios