A college has four programs B.A., B.Sc., B.Com. and B.B.A. The results of the mid-semester and end-semester tests are shown in the table given below.Results Number of students Β.Α. B.Sc. B.Com. Β.Β.Α. Failed in both tests 28 23 17 27 Failed in mid-semester test but passed in end-semester test 14 12 8 13 passed in mid-semester test but failed in end-semester test 6 17 9 15 Passed in both tests 64 55 46 76
To find the program with the lowest passing percentage in the end-semester test, we first need to calculate the total number of students and the number of students who passed the end-semester test for each program.
Students who passed the end-semester test include those who:
The total number of students in a program is the sum of students in all four categories.
The following table summarizes the data provided:
| Program | Failed in both tests | Failed mid, Passed end | Passed mid, Failed end | Passed both tests | Total Students |
|---|---|---|---|---|---|
| B.A. | 28 | 14 | 6 | 64 | $28 + 14 + 6 + 64 = 112$ |
| B.Sc. | 23 | 12 | 17 | 55 | $23 + 12 + 17 + 55 = 107$ |
| B.Com. | 17 | 8 | 9 | 46 | $17 + 8 + 9 + 46 = 80$ |
| B.B.A. | 27 | 13 | 15 | 76 | $27 + 13 + 15 + 76 = 131$ |
The passing percentage for the end-semester test is calculated using the formula:
$ \text{Passing Percentage} = \left( \frac{\text{Number of students who passed end-semester}}{\text{Total number of students}} \right) \times 100 $
Comparing the passing percentages:
The B.Sc. program has the lowest passing percentage in the end-semester test.
The table shows the monthly expenditure of Saumya. What percent of her monthly salary is she able to save?
| Expense | Amount |
| Food | 5,000 |
| Rent | 20,000 |
| Travel | 10,000 |
| Clothing | 3,000 |
| Miscellaneous | 15,000 |
| Savings | 7,500 |
Following table provides figures (in rupees) on annual expenditure of a firm for two years – 2010 and 2011.
Category | 2010 | 2011 |
Raw material | 5200 | 6240 |
Power & fuel | 7000 | 9450 |
Salary & wages | 9000 | 12600 |
Plant & machinery | 20000 | 25000 |
Advertising | 15000 | 19500 |
Research & Development | 22000 | 26400 |
In 2011, which of the following two categories have registered increase by same percentage?
The time spent to study history and chemistry is 4 hours 30 minutes. Then the student studied physics for
If the student studied chemistry for 3 hours, then he/she studied geography for
If the student studied 10 hours in a day, then he/she studied mathematics for