Question
$x+y \geq 4,2 x-y \leq 0$
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Marks in | Marks in Mathematics | |
Economics | 40-70 | 70-100 |
| 40-70 | 20 | 15 |
| 70-100 | 5 | 10 |
Find the value of statistic.
(i) x + 2y – z = 5, 2x – y + z = 1, 3x + 3y = 8
Class | 10-15 | 15-20 | 20-25 | 25-30 | 30-35 | 35-40 | 40-45 |
Frequency | 8 | 14 | 8 | 25 | 15 | 14 | 6 |