Calculate the number of yam setts planted at a spacing of 1.0m by 1.0m on a hectare of land

To calculate the number of yam setts planted at a spacing of 1.0m by 1.0m on a hectare of land, we need to first determine the area of land in hectares and then calculate the number of setts required to plant the area. One hectare of land is equivalent to 10,000 square meters. To calculate the area in square meters, we can use the formula: Area = length x width Since the spacing is 1.0m by 1.0m, the length and width are both 100 meters (1.0m x 100 rows = 100m and 1.0m x 100 columns = 100m). Therefore, the area is: Area = 100m x 100m = 10,000 square meters To convert this to hectares, we divide by 10,000: Area in hectares = 10,000 square meters ÷ 10,000 = 1 hectare Since we are planting at a spacing of 1.0m by 1.0m, each yam sett will occupy an area of 1.0m x 1.0m = 1 square meter. Therefore, the number of yam setts required to plant one hectare of land is: Number of setts = Area in square meters ÷ Sett spacing in square meters Number of setts = 10,000 square meters ÷ 1 square meter = 10,000 setts Therefore, the correct answer is (d) 10,000 setts.