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Speed of the shorter train = 180/12 = 15 m/sec Let the speed of the longer train be x km/hr According to the question, ⇒ (15 + x) = (180 + 270)/12 ⇒ 15 + x = 450/12 ⇒ x = 450/12 – 15 = 270/12 ⇒ x = 90/4 x 18/5 = 81 km/hr
What will be the geometric mean of 'Q' and 'P - Q'.
75, 80, 95, ?, 155, 200
8 13 36 123 ? 2585
45, 59, 31, ?, 17, 87
10, ?, 50, 100, 250, 500
5, 19, 30, 43, 58, ?
13 19 32 52 ? 113
What will come in the place of questions (?) mark in the following questions.
1279, 1265, ? , 1225, 1193, 1149
Find the missing character.
124, 147, 176, 207, 244, ?
