In a shop there are two ranges for ovens which are in the ratio of 6:7. There are three types of products in both range named Morphy Richards, Panasonic, and Haier. In Morphy Richards, second range is 40% of the total number of second range and 50% of first range of the total number of first range. In Panasonic, second range is 30% of the total number of second range and first range is 30% of the total number of first range.  Haier has 30% second range of the total number of second range and 20% first range of total number of first range. 8 first range and 11 second ranges are Morphy Richards and Panasonic both. 7 first range and 8 second range are Panasonic and Haier both. 5 first range and 7-second range are involved in Morphy Richards and Haier both. If it is given that 4 second range and 3 first range are involved in all the products. If it is given that there are total 260 ovens in the shop.