Quantitative Aptitude
A boat covers a certain distance downstream in 5 hours but takes 8 hours to return upstream to the starting point. If the speed of the stream is 6 km/h, find the speed of the boat in still water.
A path of uniform width 2.5 m runs around the outside of a rectangular field of dimensions 45 m × 35 m. What is the area of the path (in m2)?
Find the amount if ₹10,200 is invested at the rate of 8% per annum compound interest for \(1\tfrac{1}{2}\) years when interest is compounded half-yearly (up to two decimal places).
In what ratio should rice costing ₹185 per kg be mixed with rice costing ₹95 per kg such that by selling the mixture at ₹140 per kg there is a gain of 40%?
The following marks are obtained by a student in five subjects.
| Subjects | Marks |
| Geography | 42 |
| History | 43 |
| Civics | 51 |
| Hindi | 54 |
| CS | 50 |
What is the difference between the minimum and maximum marks scored by the student?
The sale of tickets (in 1000s) in days of a week is given in the pie chart.
The combined angle made at the centre by which days is equal to the angle made by Saturday?
Sunday, Monday and Tuesday
Tuesday, Wednesday and Thursday
Monday, Tuesday and Wednesday
Wednesday, Thursday and Friday