21.a train leave agra at 5 a.m. and reaches at delhi at 9 a.m. another train leave8 delhi at 7 a.m. and reaches agra at 10:30 am. at what time do the two trains

21.A train leave Agra at 5 a.m. and reaches at Delhi at 9 a.m. Another train leave8 Delhi at 7 a.m. and reaches Agra at 10:30 am. At what time do the two trains cross each other? (1)6:36 a.m. (26:56 a.m. (3)7 a.m. 4)756 a.m.