O is the incentre of ∆ABC and ∠A = 30° then ∠BOC is

Last financial year, a car company sold 41,800 cars. The target is to sell 51,300 cars this year. What percentage would sales have to increase?

If the speed of the boat in still water is 20 km / h and the speed of the stream is 5 km / h, then how long will it take for the ferry to travel 100 km with the speed of the stream?

Find the area of a quadrilateral whose diagonal is 10 cm. And the length of the length put on it is 6 cm and 5 cm respectively. 

If the simple interest on ₹ 1 for 1 month is 1 paisa, then the rate percent per annum will be 

Two numbers are in the ratio 3 : 5 and their HCF is 20. Their LCM is

If the length of the diagonal of a square is $${ 10\sqrt{2}}$$ cm, then what will be the area of the square?

If 999x + 888y = 1332 and 888 x + 999y = 555.then the value of (x + y) is-