Directions : Given here is a pie chart showing the cost of gold in 2010, 2011, 2012 and 2013. Study the chart and answer the following questions

The ratio of percentage increases in price of gold from 2011 to 2012 and 2012 to 2013 is

if 20% of A = 50% of B, then what percentage of A is B?

If x² + y² + z² = 2 (x + z – 1), then the value of : x³ + y³ + z³ = ?

The length of a rectangle is in- creased by 10% and breadth de- creased by 10%. Then the area of the new rectangle is: 

Direction: The line chart given below shows number of labourers (men and women) working in six different years. Study the data carefully and answer the following questions. 

The average number of Women working in 2014, 2015 and 2016 together is how much more/less than average number of Men working in 2011, 2014 and 2016 together? 

A person lends 40% of his sum of money at 15% per annum, 50% of the rest at 10% per annum and the rest at 18% per annum rate of interest. What would be the annual rate of interest, if the interest is calculated on the whole sum?

How many hemispherical balls can be made from a cylinder 56 cm high and 12 cm diameter, when every ball being 0.75 cm in radius? 

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x²– 37x + 330 = 0

II. y²– 28y + 195 = 0