In a factory the ratio of salary of skilled and unskilled workers is 5:3.Total salary of one day of both of them is ₹720.Find daily wages of skilled and unskilled workers.

Ramesh and Govind are two friends of a class.Ramesh wants to buy 5 pens and 7 notebooks,Govind wants to buy 3pens and 10 notebooks.Both of them went to a shop which they have selected was Rs.5 and Rs.12.Using matrix multiplicaton,find the amount required for each one of them.

The monthly salaries in ? of 30 workers in a factory are given below:5000, 7000, 3000, 4000, 4000, 3000, 3000, 3000,8000, 4000, 4000, 9000, 3000, 5000, 5000, 4000,4000, 3000, 5000, 5000, 6000, 8000, 3000, 3000,6000,7000,7000,6000, 6000,4000 From the above data find the mean of monthly salary.

The monthly salaries in Rs. of 30 workers in a factory are given below:5000, 7000, 3000, 4000, 4000, 3000, 3000, 3000,8000, 4000, 4000, 9000, 3000, 5000, 5000, 4000,4000, 3000, 5000, 5000, 6000, 8000, 3000, 3000,6000,7000,7000,6000, 6000,4000 From the above data find the mean of monthly salary.