Govt Exams
SP = 1000 × (1 - 0.20) = 1000 × 0.80 = ₹800
Speed = 360/6 = 60 km/h = 60 × 5/18 = 16.67 m/s
A: SP = 500 × 1.20 = ₹600, Profit = ₹100. B: SP = 400 × 1.25 = ₹500, Profit = ₹100. Total profit = 200 on 900 = 22.22% (approx 22.73% for combined weighted avg)
Total work = 24 × 16 = 384 worker-days. For 12 days: 384/12 = 32 workers
Fill rate = 1/20, Empty rate = 1/30. Net rate = 1/20 - 1/30 = 1/60. Time = 60 hours
A's work per day = 1/12, B's work per day = 1/18. Combined = 1/12 + 1/18 = 5/36. Time = 36/5 = 7.2 days
Let milk = 5x, water = 3x. After adding 8 liters water: 5x/(3x+8) = 5/4. 20x = 15x + 40. 5x = 40. x = 8. Milk = 40 liters.
Total distance = 4×2 + 5×3 = 8 + 15 = 23 km. Total time = 5 hours. Average speed = 23/5 = 4.6 km/h. Option C is correct, not A.
In 12 hours, clock gains 5 minutes. In 24 hours, it gains 10 minutes. So at 12 PM Tuesday, clock will show 12:10 PM.
SP = 900 is 90% of CP. So CP = 900/0.9 = 1000. For 15% profit, SP = 1000 × 1.15 = 1150.