Directions:  The table given below presents the number of books on different subjects kept on separate shelves subjects with odd and even numbers are of arts and Science respectively

The number of books of S2 is what percent of number of books of S6?

What is the value of $${tanθ−secθ+1\over tanθ+secθ-1}$$

The area enclosed between the circumferences of two concentric circles is 45π square cm and their radii are in the ratio of 3:2. What is the area off the outer circle?

The average of runs scored by a cricketer in his 99 innings is 99. How many runs will he have to score in his 100th innings so that his average of runs in 100 innings will become 100?

If a² + a + 1 = 0 then the value of a⁹ is. 

Directions:  Study the bar-graph given below & answer the questions.
Pie-chart given below shows the percentage distribution of total no. of boys in six different Schools.
Total Boys in all schools together = 6400

If ratio of girls to total students in school E is 3 : 5. Then find difference of boys in school D to girls in school E?

A can finish a piece work in 18 days and B can do the same work in half of the time taken by A. Then working together what part of the same work they can finish a day?

A double bed is marked at  ₹ 7,5000. The shopkeeper allows successive discounts of 8 %, 5 % and 2 % on it. What is the net selling price?