Mrs. Dronamraju has 30 tall plants. Fifteen of her plants have a height of 1.60 m and the remaining 15 plants have a height of 1.22 m. Mrs. Dronamraju lines upn plants so that the average height of...

Extracted text: Mrs. Dronamraju has 30 tall plants. Fifteen of her plants have a height of 1.60 m and the remaining 15 plants have a height of 1.22 m. Mrs. Dronamraju lines upn plants so that the average height of any four consecutive plants is greater than 1.50 m and the average height of any seven consecutive plants is less than 1.50 m. Determine the largest possible value of n.