Question

A cinema hall has equidistant rows 1 m apart. The length of the cinema hall is 287 m and it has 287 rows. From one side of the cinema hall, laughing gas(N₂O) is released and from the other side, tear gas(C₆H₅COCH₂CI) is released. In which rows, spectators will be laughing and weeping simultaneously?

• A. ${187}^{th}$ from $N_{2}O$ and ${100}^{th}$ row from $C_6{H}_{5}COC{H}_{2}Cl$
• B. ${100}^{th}$ row from tear gas and ${187}^{th}$ from $N_{2}O$
• C. $287$ from $N_{2}O$ and $287$ from $C_6{H}_{5}COC{H}_{2}Cl$
• D. ${100}^{th}$ row from both

Answer 1

The correct option is A

${187}^{th}$ from $N_{2}O$ and ${100}^{th}$ row from $C_6{H}_{5}COC{H}_{2}Cl$

Therefore, the spectator from the side of N₂O in the 187^th row will be laughing and weeping simultaneously. Alternatively, the spectator from the side of tear gas in the 100^th row will be laughing and weeping simultaneously.