In the given figure, PQR is an equilateral triangle and PS is the angle bisector of angle P. What is the value of RT : RQ?

After a discount of 20% Asmita bought an item for Rs.9600. Asmita sold it to other person and earned a profit of 18% on the original price. At what price other person bought the item?

Rahul and Rohan enter into a partnership with   their capitals in the ratio 7:9. At the end of 8^th month, Rahul  withdraws his capital. If they receive the  profits in the ratio 8:9, find how long Rohan’s capital was used.

Study the following graph and answer the question that follow.

What is the approximate average number of candidates passed from all the institutes together?

Sum of the factors of 4b²c²-(b²+c²-a²)² is : 

An octahedron has 12 edges, How many vertices does it have,