A shopkeeper sold a table and a chair for ₹ 1,050, thereby making a profit of 10% on the table and 25% on the chair. If he had taken a profit of 25% on the table and 10% on the chair, then he would have got ₹ 1,065. What is the cost price of 1 table and 1 chair.

A shopkeeper buys pens and pencils at ₹ 5 and ₹ 1 per price respectively. For every two pens, he buys three pencils. He sold pens and pencils at 12% and 10% profit respectively. If his total sale is ₹ 725, then find the number of pens and pencils sold by him.

The angles of a triangle in ascending order are x, y and z. If y - x = z - y = 10°, then find the angles of the triangle.