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Let the usual speed be x km/hr New speed = 125% of x = 5x/4 km/hr Distance = 495 km According to the question 495/x – 495/(5x/4) = 90/60 495 x [(5 – 4)/5x] = 3/2 Therefore, x = 495 x (1/5) x (2/3) = 66 km/hr
4, 10, 19, 30, 43, ?
64, 32, 48, 120, 420, ?
What value should come in the place of (?) in the following number series?
71, 72, 76, 103, ?, 244
What will be the geometric mean of 'Q' and 'P - Q'.
7, 176, ?, 378, 427, 452
...12, 33, 45, 78, 123, 201, ?
161 173 191 215 245 ?
...30, 42, 54, 66, ?, 90
246, 102, 202, ?, 174, 158
196, 196, 203, 229, 292, ?