The import and export of a country (in lakhs rupees) during a certain period of time is given in the following bar graph. Read the graph and answer the following questions .
During which year the difference berween import and export is minimum?
If 5 sin²A + 3 cos² A = 4, 0 < A < 90°, then what is the value of tan A?
The value of \(
\frac{(p-q)^3 + (q-r)^3 + (r-p)^3}{12(p-q)(q-r)(r-p)}
\) , where \(
p \neq q \neq r
\) , is equal to :
\( \frac{1}{9} \)
\( \frac{1}{3} \)
\( \frac{1}{4} \)
\( \frac{1}{2} \)
Calculate the mean from the following table.
| Scores | Frequencies |
| 0-10 | 2 |
| 10-20 | 4 |
| 20-30 | 12 |
| 30-40 | 21 |
| 40-50 | 6 |
| 50-60 | 3 |
| 60-70 | 2 |
The table shows number of books sold by 7 shops.
| Shops | Books |
| A | 34 |
| B | 48 |
| C | 50 |
| D | 100 |
| E | 64 |
| F | 110 |
| G | 16 |