Directions: Read the following table carefully and answer the question that Classification of 100 students based on the marks Obtained by them in English and Maths in an Examination.
| Subject | Mark out of 50 | ||||
| 40 and Above | 30 and Above | 20 and Above | 10 and Above | 0 and Above | |
| English | 23 | 26 | 70 | 90 | 100 |
| Maths | 15 | 36 | 75 | 95 | 100 |
| (Aggregate) Average | 19 | 31 | 80 | 93 | 100 |
What is the difference between the number of students passed with 20 as cut-off marks in English and those passed with 20 as cut-off marks in aggregate?
A body of mass 100 gm is rotating on a circular path of radius r with constant velocity. The work done in one complete revolution will be:
An object moving with a deceleration of 2.5 ms -2 comes to rest after 20 s. What is its initial velocity?