If A : B: C= 2 : 3 : 4, then is equal to 

The maximum number of common tangents drawn to two circles when both the circles touch each other externally is 

If ABC is an equilateral triangle and P, Q, R respectively denote the middle points of AB, BC, CA, then 

Study the graph carefully and answer the following questions.

What is the average production of State C for three years?

What will be the greatest common factor of 96, 528, 2160, 3520?

How much percent above the cost price should a shopkeeper mark his goods so as to earn a profit of 32% after allowing a discount of 12% on the marked price? 

Rahul plans to buy a scooter for his sister for which he saves Rs. 15625 at the start of every year for 3 year. If the rate of CI is 4% pa. then amount at which he plans to buy the scooter is (in Rs.)

From a point 20 m away from the foot of a tower, the angle of elevation of the top of the tower is 30°. The height of the tower is