Question
Without stopping the speed of the train is 125 kmph,
with stopping the speed of the train is 75 kmph.Find the stop time of the train?Solution
Stopping time = (125 – 75)/125 = 50/125 = 2/5 hrs = 24 min
If 152,   242,    x ,  332,   404,    314,
then find the value of (2x – 1)?
...3 5 7 25 85 481
...60  61  126  387  ?   7845
2556   636    156    ?    6
9Â Â Â 4.5Â Â Â 4.5Â Â Â 9Â Â Â 36Â Â Â ?
14 20 35 ? 433 2167
...63 189 315 378 567 693
...11Â Â Â 46Â Â Â 109Â Â Â 208Â Â Â Â 351Â Â Â Â ?
12 11 18 34 89.5 259.5
...Choose the correct alternative
21: 3 ∷ 574: ?