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Potassium (K) and magnesium (Mg) are mineral nutrients that are required in large quantities by plants. Both elements critically contribute to the process of photosynthesis and the subsequent long-distance transport of photoassimilates.
52% of 400 + √(?) = 60% of 600 - 25% of 400
36×?² + (25% of 208 +13) = 60% of 2400 + 17×18
3% of 842 ÷ 2% of 421 = ?
(21 X 5) + ? = (480 - 120) ÷ 3
1000÷ 250 = ( 3√? × √1444) ÷ ( 3√512 × √361)
22% of 560 + 34% of 2160 × 5/12 =? + 16% of 920
36% of 250 + 26 ÷ 2 × ? = 207
2197 1/3 + 30% of 1800 = ?× 343 1/3
23% of 8040+ 42% of 545 = ?%of 3000
20% of 550 × 25% of 80 = ?2 × 22
