Suppose length of the train = L m
Speed of the train = 60 km/h = 60 x 1000 = 60000 m/h
Length of tunnel = 1.5 km = 1500 m
Time taken by train = 2 min = 1/30 h
Time = Distance/Speed
? 1/30 = L + 1500/60000
? l = 500 m
19657 Let x - 53651 = 9999 33994 Then, x = 9999 + 53651 = 63650 ----- 53651 -----
⟹ x + 3699 + 1985 = 31111 + 2047
⟹ x + 5684 = 33158
⟹ x = 33158 - 5684 = 27474.
Let 250 / √x = 10.
Then √x= 250 / 10 = 25
∴ x = 625
Let x + 6207 - 9038 = 107
Then x = (107 +9038) - (6207)
= 2938
Let x - 4799 = 1714
Then, x = 4799 + 1714
= 6513.
Let 9501 - x = 3697
Then x = 9501 - 3697
= 5804
66066 + 6606 + 66 + 6 = 72744
Let y x 48 = 173 x 240
Then y = (173 x 240) / 48
=173 x 5
= 865 .
Let N x 11 = 555555
Then N = 555555 / 11 = 50505.
Let 87 x N = 3393
Then, N = 3393 / 87 =39 .
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