Rajesh buys a table of Rs 900 and sells it. Rajesh gives two successive discount of 10% and 20% to the customer. What will be the selling price (in Rs) of the table?
A, B and C are three points on a circle with centre O. The tangent at C meets BA produced at T. If ∠ATC = 30° and ∠ACT = 48°,then what is the value of ∠AOB ?