Study the following graph and answer the question that follow.
What is the different between the numbered of candidates appeared from institutes A, C, D and F together and candidates passed from institute-B, E and G together?

If the compound interest rate is 20% per annum compounded half yearly, then what will be the interest for two years on the principal of Rs. 100000?

Direction : What should come in place of the question (?) in the following question.

16  8    12   30  ?    472.5

The shadow of a tower standing on a level plane is found to be 30 metre longer when the Sun's altitude changes from 60 ° to 45 °. The height of the tower is 

A number is decreased by 20% to get another number. The number so obtained is increased by 200% to get a third number. The difference of the third number and the original number is what percentage more or less than the difference of second and the third number?

The angle of elevation of the top of a building at a distance of 70 m from its foot on a horizontal plane is found to be 60°. Find the height of the building.

The speed of three cars in the ratio 4 : 5 : 8 . What is the ratio among the time taken by these cars to travel the same distance ? 

The greatest number, which when subtracted from 5834, gives a number exactly divisible by each of 20, 28, 32 and 35, is