In the given figure AD ‖ BC, if ∠ABC=72°, then ∠BCD=?

The area of two equilateral triangles are in the ratio 25 : 36 . Their altitudes will be in the ratio: 

A person goes to his office by scooter at the speed of 80 km/hr and reaches 60 minutes earlier. If he goes at the speed 50 km/hr, then he reaches 48 minutes late. What will be the speed of the scooter to reach on the usual time?

Manoj gave 60% of his salary to his wife and invested rest amount in mutual funds. His wife spends 30% amount on grocery and 20% on rent. From remaining amount, she purchased gold worth Rs. 18000. Find salary of Manoj.

A milkman has 75 litres milk in one cane and 45 litres in another. The maximum capacity of container which can measure milk of either container exact number: 

If an item is sold for Rs. 270, there is a loss of 10 percent on it , then what will be the cost price of that item?

Directions: The Bar Graph given here shows the population (in crores) of India in various census years. Observe the graph and answer the question based on it.  

The percent increase in population from 1971 to 1981 is 

A line passing through the origin perpendicularly cuts the line 3x – 2y = 6 at point M. Find the co-ordinates of M.