A retail store marks an electronic gadget at Rs. 2000. If the store offers a festive discount of 20% on the marked price, what is the final selling price of the gadget to the customer?

A retail store marks an electronic gadget at Rs. 2000. If the store offers a festive discount of 25% on the marked price, what is the final selling price of the gadget to the customer?

A retail store marks an electronic gadget at Rs. 1000. If the store offers a festive discount of 30% on the marked price, what is the final selling price of the gadget to the customer?

A retail store marks an electronic gadget at Rs. 2000. If the store offers a festive discount of 15% on the marked price, what is the final selling price of the gadget to the customer?

In a class of 78 students, 19 study Physics, 64 study Chemistry, and 5 study neither. How many students study both Physics and Chemistry?

If Person A can complete a task alone in 20 days, and Person B can complete the same task alone in 30 days, how many days will it take them to complete the task if they work together?

If Person A can complete a task alone in 5 days, and Person B can complete the same task alone in 20 days, how many days will it take them to complete the task if they work together?