There are two circles touching each other externally. The radius of the first circle with centre O is 12 cm. The radius of the second circle with centre A is 5 cm. Find the length of their common tangent touching the two circles at points P and Q
The cost price of a fan is ₹4,400. A merchant wants to make a 24% profit by selling it. At the time of sale, the merchant declares a discount of 12% on the marked price. Find the marked price.
The price of a product increases by 10% in the first year and 20% in the second year. What is the overall percentage increase in the price of the product over the two years?