Question : Two equal glasses filled with alcohol and water in the proportions 2 : 1 and 3 : 2 are emptied into a third glass. The proportion of alcohol and water in the third glass will be:

Option 1: 13 : 17

Option 2: 19 : 17

Option 3: 13 : 11

Option 4: 19 : 11

Question : What will happen to the level of water in a vessel when a piece of ice floating in it melts?

Option 1: Decreases

Option 2: Increases

Option 3: Remains same

Option 4: First increases and then decreases

Question : Pressure cooker cooks faster because:

Option 1: The boiling point decreases with the rise in pressure.

Option 2: It cooks the food at low pressure.

Option 3: A higher temperature is attained for cooking.

Option 4: The material of the cooker is a good conductor.

Question : The average weight of A, B and C is 65 kg. If the average weight of A and B is 63.5 kg, and the average weight of A and C is 67.5 kg, then the weight of A (in kg) is:

Option 1: 67

Option 2: 60

Option 3: 68

Option 4: 65

Question : The weight of a body at the centre of the earth is:

Option 1: Half the weight at the surface

Option 2: Zero

Option 3: Twice the weight at the surface

Option 4: Infinite