Question 1 - Figure it out (Page 65) - Inverse Proportions - Chapter 3 Class 8 - Proportional Reasoning-2 (Ganita Prakash II)

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Question 1 - Figure it out (Page 65) Which of these are in inverse proportion?If the products are in Inverse Proportion 𝒙 × 𝒚 = Constant Let’s check for each case For (i) Let's multiply 𝑥 and 𝑦 : 40 × 20=800 80 × 10=800 25 × 32=800 16 × 50=800 Since the product is constant 800 They are in Inverse Proportion For (ii) Let's multiply 𝑥 and 𝑦 : 40 × 20=800 80 × 10=800 25 × 12.5=312.5 Since the product is not constant They are not in Inverse Proportion For (iii) Let's multiply 𝑥 and 𝑦 : 30 × 15=450 90 × 5=450 150 × 3=450 10 × 45=450 Since the product is constant 450 They are in Inverse Proportion