In an imaginary mathematical system, symbol '-' stands for addition, symbol '+' stands for division, symbol ' ' stands for subtraction, and symbol ' ' stands for multiplication. All other rules of mathematics are the same as in the existing system. What is the value of the following expression?
240 72 + 8 24 - 6
Select the correct mirror image of the given combination when the mirror is placed at 'PQ' as shown.
Select the figure among the given options that can replace the question mark (?) in the following series. 