1. In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question? 45 x 5 - 24 + 3 ÷ 80 = ?
5. Two motorcyclists P and Q start from the same point. P rides 11 km West, then turns South and rides 16 km, then turns to his right and rides 14 km. Q rides 30 km South, then turns to his right and rides 25 km. Where is Q with respect to P now?
7. In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question? 27 x 3 ÷ 30 + 5 - 125 = ?
9. In a certain code language, ?book is tough? is written as ?fu la mi?, ?tough can easy? is written as ?fu muk po? and ?easy not book? is written as ?ti po la?.What is the code for ?tough? in that code language?
10. In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question. 2 - 12 + 10 x 5 ÷ 12 = ?