△ABC ∼ △DEF. If the areas of △ABC and △DEF are 100 cm² and 81 cm², respectively and the altitude of △DEF is 6.3 cm, then the corresponding altitude of △ABC is:

Directions: The following pie chart show proportion of population of seven villages in 2009. Stud the pie chart and answer question that follows:

In 2010, the population of 'Y' and 'V' increases by 10% each and the percentage of population below poverty line remains unchanged for all the villages. If in 2009, the population of village Y was 30,000 then the below poverty line population of village 'V' in 2010 is-

If the arcs of square length in two circles subtend angles of 60° and 75° at their centres, the ratio of their radii is 

If x = 2 then the value of x³ + 27x² + 243x + 631 is

The circumference of the base of a cylindrical vessel is 158.4 cm and its height is 1 m. How many litres of water can it hold (correct to one decimal place)?

(Take π = 22/7)

Direction: Read the following table carefully and answer the following questions:

The male workers are approximately what percent of the total workers of five companies?

Direction: Read the following graph carefully and answer the following questions:
The following bar graph shows the quantity(in kg) of wheat, rice, pulses and salts sold by two companies P and Q in the month of January.

The total quantity of wheat, rice, pulses and salts sold by company P is approximately what percentage more or less than the total quantities sold by company Q?

Directions : Read the graph and answer the following questions.

Percentage increase in profit in 1986 over 1982 is