Study the graph carefully to answer these questions.

The foreign exchange reserve in 2012 was how many times that in 2009?

• 0.7

• 1.2

• 1.4

• 1.4

Study the graph carefully to answer these questions.

What was the percentage increase in the foreign reserves in 2012 over 2008?

• 100%

• 150%

• 200%

• 200%

Study the graph carefully to answer these questions.

The ratio of the number of years, in which the foreign exchange reserves are above the average reserves, to those in which reserves are below the average reserves is 

• 2:6

• 3:4

• 3:5

• 3:5

A well of diameters 3m is dug 14m deep. The Earth taken out of it has been spread evenly all around it in the shape of a circular ring of width 4m to form an embankment. Find the height of the embankment.

• 4.25 m

• 2.250 m

• 1.125 m

• 1.125 m

50.

If , then find the value of 

• 2

• 3

• 4

• 4