Question : Electrical conductance through metals is called electronic conductance and it ______.

Option 1: does not depend on the temperature

Option 2: decreases with an increase in temperature

Option 3: increases with an increase in temperature

Option 4: decreases with a decrease in temperature

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 : A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole?

Option 1: Increases

Option 2: Decreases

Option 3: Remain constant

Option 4: Will increase first then decrease

Question : The salary of Ramesh first increases by 35%, then decreases by 40%, then again increases by 25%. Find the overall increase or decrease percentage.

Option 1: Increase by 1.25%

Option 2: Decrease by 2.25%

Option 3: Decrease by 1.25%

Option 4: Increase by 2.25%

Question : The price of a car is first increased by 35% and after that, the price is decreased by 25% due to a reduction in sales. What is the net percentage change in the final price of the car?

Option 1: Decreases by $2 \frac{1}{5}$%

Option 2: Increases by $2 \frac{1}{3}$%

Option 3: Decreases by $1 \frac{3}{5}$%

Option 4: Increases by $1 \frac{1}{4}$%