Let the length of each train be L m.
Relative speed = 46 - 36 = 10 km/h = 10 x 5/18 m/s = 25/9 m/s
Sum of length of train / Relative speed of train = Time taken
? 2L/(25/9) = 36
? 2L = (36 x 25)/9 = 100
? L = 50 m.
47/10000 = .0047
.02 =(2/100) x 100% =2%
Let N / 11 = 233
Then, N = 233 x 11 = 2563
? Missing digit is 5.
121012 = 12 x 10084 + 4
? remainder = 4
We have the important relation, More work, More time (days)
? A piece of work can be done in 6 days.
? Three times of work of same type can be done in 6 x 3
= 18 days
? = 750.0003 ÷ 19.999
? ? ? 750 ÷ 20
? ? ? 375 ? 38
Subtract 20, 25, 30, 35, 40, 45 from successive numbers. So 0 is wrong.
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