If a + b = 1 and a³ + b³ + 3ab = k, then the value of k is

If a + b + c = 6, a² + b² + c² = 14 and a³ + b³ + c³ = 36, then the value 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-

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

If the population of the village 'R' is 32000, then the below poverty line population of village Y is 

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

The ratio of the below poverty line population of village 'T' to that of the below poverty line population of village 'Z' is 

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

If the below poverty line population of the village 'X' is 12160, then the population of village 'S' is 

On a river, Q is the mid-point between two points P and R on the same bank of the river. A boat can go from P to Q and back in 12 hours, and from P to R in 16 hours 40 min. How long would it take to go from R to P?

A man can row upstream at 12 km/hr and dowstream at 18 km/hr. The man's rowing speed in still water is: