Question
A train crosses two platforms of length 1000 m and 600 m
in 80 seconds and 60 seconds, respectively. What is the length of the train?Solution
Let the length of the train be x m. As we know, Speed = (x + 1000)/80 ---(1) Speed = (x + 600)/60 ---(2) From equation (1) and equation (2) (x + 1000)/80 = (x + 600)/60 3 (x + 1000) = 4 (x + 600) 3x + 3000 = 4x + 2400 4x-3x = 3000-2400Â Â x = 600 The length of the train is 600 m.
351Â Â Â 261Â Â Â 181Â Â Â 111Â Â Â 51Â Â Â ?
Find the 31st term of the series 25, 29, 33……
632, 560, 494, 434, ?, 332
1331      1000            729       512       ?             216
...2556   636    156    ?    6
3 5 15 75 1125 ?
...1. In series II, if ‘x’ is the right term, then find which of the following statement(s) are true.
I. x/124 is a factor 6 and 8.
73920, 9240, ?, 220, 44, 11
12 78 385 ? 4629 9260
...A number series is given below, which follows a specific pattern. If 'A' represents the 'x'th term and 'B' represents ...
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