Fill in the blanks:
Sin A = ____ × (Cos A) 

The average of the marks obtained in an examination by 8 students was 51 and by 9 other students was 68. The average marks of all 17 students was: 

(53×87+159×21+106×25) is equal to 

If the circumference of a circle is 4.4 m, then the area of the circle (in m²) is :

In the given figure AB, BC and CA is a tangent of a circle if BC=6.3 cm and MC=2.7 cm then the Value of BL is                                                                

On selling an article for Rs 162 there is a loss of 10%.At what price it should be sell in order to gain a profit of 10%?

Ram travelled 1200 km by air which is formed of his trip. He travelled one-third of the trip by car and the rest by train. The distance (in km) travelled by train was 

By selling an article for Rs. 320, a man incurs a loss of 20%, what should be the selling price of an article to gain 30%?