Question
A train travelling at the speed of 72 km/hr crosses
another train, having 20 meters less length and travelling in opposite direction at the speed of 54 km/hr in 8 seconds. If the longer train crosses a platform in 16 seconds, then the shorter train will cross the same platform in how many seconds?Solution
Speed of longer train = 72 × (5/18) = 20 m/s
Speed of shorter train = 54 × (5/18) = 15 m/s
Let length of longer and shorter trains be ‘L’ meters and (L – 20) metres, respectively.
According to question,
L + L – 20 = (20 + 15) × 8 = 280
2L – 20 = 280
L = 150 metres
So, L – 20 = 130 metres
Let length of platform is ‘P’ metres
So, P + 150 = 20 × 16 = 320
P = 320 – 150 = 170 meters
Desired time = (170 + 130)/15 = 300/15 = 20 seconds
Which of the following statements about benami transactions is correct under the amended Benami Transactions (Prohibition) Act, 1988?
Who regulates Commodities market in India?
Which of the following is considered a key principle of taxation that ensures tax fairness by taxing individuals based on their economic capacity?
1. Mark the incorrect match:
According to the Land Acquisition Act, 2013, how much solatium (additional compensation) is payable to the landowner over and above the compensation amo...
According to the Transfer of Property Act vested interest is not____________________
The provisions of ______ mortgage shall apply to a Mortgage by deposit of title deeds
When the right of private defense of property extends to causing death:
What is meant by expressed promise?
Where any electronic record, purporting or proved to be ___________ years old, is produced from any custody which the Court in the particular case consi...
