Two Person P an d Q ar e separ ated by a distan ce of 20 meterin west-east direction respectively. Now P and Q startwalking in north and south direction respectively and walkedfor 5 meter. Now P and Q took a right turn and walked 10meach . Now P an d Q took left tur n an d aft er walkin g 5 meterboth of them stopped. Find the distance between them
In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.