For a certain shoe factory the fixed costs are Rs 200,000, selling price is Rs 2000 per pair of shoes and variable cost is Rs 1200 per pair, what is the breakeven quantity?
Two circles touch each other at point X. Two common tangents of the circles meet at point P and none of the tangents passes through X. These tangents touch the larger circle at points B and C. If the radius of the larger circle is 15 cm and CP = 20 cm, then what is the radius (in cm) of the smaller circle?