2. In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question? 75 - 5 + 25 ÷ 125 = ?
4. In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation. 7 x 5 x 6 = 576, 4 x 2 x 5 = 245, 8 x 2 x 5 = ?
8. Some equations are solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis. 5 x 4 x 3 = 70 , 6 x 5 x 4 = 140 7 x 6 x 5 = ?