Among the following soil types, which one demonstrates the highest infiltration rate, indicating the soil's ability to allow water to permeate easily?
Sandy soils have maximum infiltration rate.
5, 5, 15, 75, ?, 4725
15.975 ×27.825 + (76.01)² + 12.98×18.426 = ?+ (79.09)²
8, 9, 125, ?, 1331, 169
1 1 4 ? 280 3640
...Find the missing character.
10296/72 + 3040 = (? × 4) + 1395
64, 79, 109, 169, 289, ?
84, 97, ?, 162, 214, 279
38, 41, 50, ?, 158, 401
38% of 18/225 of 31/19 of 15225 =?