The weights of 4 boxes are 30, 20, 60 and 70 kilograms. Which of the following cannot be the total weight,in kilograms, of any combination of these boxes and in a combination a box can be used only once?
The pie chart shows the results of an online survey which asked people about their favourite travel destination. Study the diagram and answer the following questions.
The measure of the central angle of the sector representing number of people whose favourite travel destination is Hawaii is ________ degrees.