Quantitative Aptitude
The following pie chart gives the percentages of the number of students studying in different streams in an engineering college. There are 5000 students in the college in all.
The college decided to give ₹300 per student to each stream for the purchase of teaching materials. How much will the Electronics and Communication stream get?
Find the total surface area of a closed hemisphere whose diameter is 7 cm.\( \text{use } \pi = \frac{22}{7} \)
The following table shows the marks secured (out of 50) in two subjects by a number of students of a school.
| Subject | Marks out of 50 | ||||
| 40 and above | 30 and above | 20 and above | 10 and above | 0 and above | |
| Hindi | 80 | 120 | 150 | 540 | 1200 |
| English | 40 | 140 | 180 | 960 | 1200 |
What is the ratio of the number of students who scored 40 and above in Hindi to the number of students who scored 20 and above in English?