What is the discount rate of a gift whose selling price is Rs. 420 after a reduction of Rs. 60 on its marked price ?

The number of mainas and parrots in an aviary is in the ratio of (4x + 5) : 4x. If 25 mainas and 10 parrots are added to the aviary, then, the ratio would change to 5: 3. How many mainas are there in the aviary at initial?

The base of a triangle is 15 cm and height is 12 cm. The height of another triangle of double the area having the base 20 cm is

Ratio between two numbers is 3: 4. Product of their H.C.F and L.C.M is 2028. Find sum of the numbers. 

A, B and C invest to start a restaurant. The total investment was Rs 3 lakhs. B invested Rs 50,000 more than A and C invested Rs 25,000 less than B. If the profit at the end of the year was Rs 14,400 then what is C's share of the profit (in Rs)?

Find the value of 13/16 share of land whose 9/7 share is worth 10,116.

From a tower 125 metres high the angle of depression of two objects, which are horizontal line through the base of the tower are 45° and 30° and they are on the same side of the tower. The distance (in metres) between the objects is

The midpoints of AB and AC of a triangle ABC are X and Y respectively. If BC + XY = 12 units, then BC – XY is: