1-A group of workers having 5 members each were given sallery of 5000 rs per month . Then what will be the sallery of each workers? 2-If cost of 20 maths books is 10000.Then what is cost for 2 books? 3-There was a party at school and every couples parents were called. but only 500 couples were there then find number of parents? 4-A dog walk at speed of 6km/hour. Howmuch distance does it cover in 10 minutes?