What should come in place of the question mark '?' in the following number series?

7, 13, ?, 49, 97, 193

While selling a watch, a shop- keeper gives a discount of 5%. If he gives a discount of 7%, he earns ₹15 less as profit. The marked price of the watch is 

If x = – 1, then the value of   $$ {1\over x^{99}}+{1\over x^{98}}+{1\over x^{97}}+{1\over x^{96}}+{1\over x^{95}}+{1\over x^{94}}+x $$ is

In the given question, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer.

I. 16x²– 32x + 15 = 0

II. 16y²– 48y + 35 = 0

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 graph shows production (in thousands) of two types (P and Q) of vehicles by a factory over the years 2009 to 2014. Study the graph and answer the given questions. 

The ratio of total production of Type P vehicles to total production of type Q vehicles over the years is  

Directions: The following Pie Chart shows the export of different food grains from India in 2010. Study the chart and answer the questions:

If a total of 1.5 million quintals of crop F was exported, then the total quantity of D and E that was exported (in million quintals) was

Directions: The bar diagram given below shows the productions (in the unit of thousand pieces) of three types of biscuits by a company in the five consecutive years. Study the diagram and answer the following questions.

The percentage drop in the number of glucose biscuits manufactured from 1994 to 1995 is