The following pie chart shows the amounts of money spent under different heads by a household as percentages of the total money spent by the household on these 7 heads taken together.
If the total money spent on these 7 heads is ₹2,300, then what is the amount spent on E5?
The following table shows the number of students of class 6, class 7, class 8, class 9 and class 10, in schools A, B and C.
| School | Class | ||||
| Class 6 | Class 7 | Class 8 | Class 9 | Class 10 | |
| School A | 25 | 45 | 35 | 55 | 80 |
| School B | 65 | 45 | 55 | 45 | 20 |
| School C | 35 | 65 | 40 | 25 | 30 |
What is the total number of students in class 9 and class 10, taken together, in school B?
The area of a square is 144 cm2. What is the length of each of its diagonals?
\( 14\sqrt{2}\ \text{cm} \)
\( 6\sqrt{2}\ \text{cm} \)
\( 12\sqrt{2}\ \text{cm} \)
\( 12\ \text{cm} \)