A cinema hall has equidistant rows 1m apart. The length of cinema hall is 287m and it has 287 rows. — AITS & Test Series Chemistry Question

Question

A cinema hall has equidistant rows 1m apart. The length of cinema hall is 287m and it has 287 rows. From one side of cinema hall, laughing gas N2O is released and from the other side, weeping gas (C6H5COCH2Cl) is released. In which rows, spectators will be laughing and weeping simultaneously? (A) 100th row from weeping gas side (B) 100th row from laughing gas side (C) 187th row from the weeping gas side (D) 185th row from the laughing gas side