The cost price of an article A and an article B is Rs. 130 and Rs. 300 respectively. The total selling price of both articles is Rs. 910. A shopkeeper got ‘X’ % profit on article A after selling the article. If the shopkeeper got 30% profit on article B after selling the article then find the value of ‘X’.
Manufacture undertakes to supply 2000 pieces of a particular component at Rs. 25 per piece. According to his estimates, even if 5% fail to pass the quality tests, then he will make a profit of 25%. However, as it turned out. 50% of the components were rejected. What is the loss to the manufacturer?