Three groups of companies: Tata; Birla and. Reliance announce, the average, of the annual profit for, all years since their establishment. The average profit of Tata is Rs. 75,000 lakh The average profit, of Birla is Rs. 64000 lakh The average profit of. Reliance is Rs. 73000 lakh The average profit of all results of Tata and Birla together is Rs 70000 lakh., The average profit of all results of Birla and Reliance together is Rs. 59000 lakh. Approximately what is the average profit for all the three group of companies?