Correct option is D
10y - 20 = 30 → Add 20 both sides → 10y = 50 → y = 5. Explanation of options: (a) ✘ 10×2 - 20 = 0 (b) ✘ 10×3 - 20 = 10 (c) ✘ 10×4 - 20 = 20 (d) ✔ 10×5 - 20 = 30 ✅
10y - 20 = 30 → Add 20 both sides → 10y = 50 → y = 5. Explanation of options: (a) ✘ 10×2 - 20 = 0 (b) ✘ 10×3 - 20 = 10 (c) ✘ 10×4 - 20 = 20 (d) ✔ 10×5 - 20 = 30 ✅
Suggested Test Series
Suggested Test Series