Question
Domination of weed
causes:Solution
Reduction in crop yield; Loss in crop quality; Interference in crop handling; Reduction in land value; Weeds as reservoirs of pests and diseases and Loss of human efficiency (allergy and poisoning).
3 √(432 – 13 + 9 × 32) = ?
40.5 ÷ [4/5 of (32 + 18) - 29/2] = ? ÷ 102
1200 - 60 X 6 + 30 = 30 X 20 + ?
(15 × 225) ÷ (45 × 5) + 480 = ? + 25% of 1240
- Evaluate: 156 ÷ 12 × 4 + 180 – 40% of 350
Find the value of (x + y)² - (x - y)², where x = 15 and y = 7.
560 ÷ 14 × 3 – 25 = ?
26 2 – 13% of 400 + (529 ÷ 23 2 ) = ? 2Â
√14400 x √8100 - (60)² = ? + (80)²