Question
A steam train covers a certain distance at the same
speed. If the steam train had been faster by 8 kilometers per hour, it would have taken 16 hours less than the scheduled time. If the steam train had been 4 kilometers per hour slower than it would have taken 12 hours more than the scheduled time. Find the distance covered by the steam train.Solution
ATQ- Distance - S(S+8) ×16/8                 … (1) S(S-4) ×12/4                  … (2) Solving After (1) and (2) 3S-2S=16+12 S=28km/h D=28(28+8)16/8 =28×72=2016km
28, 84, 42, 126, 68, 189
128, 350, 609, 898, 1222, 1583
Direction: Find the wrong number in given number series.
214, 230, 294, 550, 1574 , 5470.
16, 36, 128, 768, 6144, 61440
Find the wrong number in the given number series.
2, 3, 5, 8, 13, 22, 3430, 42, 48, 54, 65, 81, 126
Find the wrong number in the given number series.
4, 8, 24, 84, 480, 2880
11Â Â Â Â 110Â Â Â Â Â 978Â Â Â Â 6824Â Â Â Â 34103Â Â Â Â 102290
- 2024, 1583, 1193, 822, 498, 209
132, 130, 136, 126, 142, 110