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Question : Directions: The mean weight of 8 students is 57 kg. The weight of each student is 55 kg, 49 kg, 57 kg, 63 kg, 68 kg, 52 kg, X kg, and Y kg. What is the sum of X and Y?

Option 1: 116 kg

Option 2: 112 kg

Option 3: 110 kg

Option 4: 114 kg

Question : How much chicory, costing INR 100/kg, should be added to 40 kg of coffee costing INR 45/kg so that the mixture will be worth INR 60/kg?

Option 1: 12.5 kg

Option 2: 5 kg

Option 3: 17.5 kg

Option 4: 15 kg

Question : Ritika purchased 'x' kg wheat at Rs. 30/kg and sold 8 kg of this at Rs. 'x' per kg and remaining at Rs. 45/kg. The overall profit percentage earned is 10%, then what quantity of wheat does Ritika sell at Rs. 45/kg?

Option 1: 18 kg

Option 2: 16 kg

Option 3: 10 kg

Option 4: 14 kg