Let t2 = Time travelled by the second train. Let t1 = Time travelled by the first train alone + Time travelled with second train = 2.4 + t2

Let t2 = Time travelled by the second train. Let t1 = Time travelled by the first train alone + Time travelled with second train = 2.4 + t2 d = r1 (2.4 + t2 ) + r2 t2 2276.4 = 71 (2.4 + t2 ) + 91 t2 2276.4 = 170.4 + 71 t2 + 91 t2 2106 = 162 t2 t2 = 13 help me solve this.