General Studies · Coding-Decoding

Consider the following clock-based coding system: @ = either hour hand or minute hand is at 2 + = either hour hand or minute hand is at 5 ? = either hour hand or minute hand is at 3 < = either hour hand or minute hand is at 4 > = either hour hand or minute hand is at 12 ~ = either hour hand or minute hand is at 8 Note: If two symbols are entered, the first one is interpreted as the hour hand and the second as the minute hand. All times are in PM (e.g., <~ = 4:40 PM). Train D departs from Agra to Lucknow at @< and train F departs from Lucknow to Agra at @~. Train D operates at a consistent speed of 10 m/s. Train F travels one-third faster than D. Given that the distance between Agra and Lucknow is 138 km, at what time will the two trains meet?