Start learning 50% faster. Sign in now
Let the length of train ‘A’ be ‘x’ meters. Therefore, the length of the goods train = ‘4x’ meters Speed of train ‘A’ = 54 × (5/18) = 15 m/s According to the question, 4x + x = 15 × 20 => 5x = 300 => x = 60 Therefore, the time is taken by train ‘B’ to cross train ‘A’ = {(60 + 240)/ (15 + 9)} = 300/24=50/4=12.5second
If x⁴ + y⁴ = 17 and x + y = 1, then the value of x²y² - 2xy is
Which country celebrates one of the famous festivals known as Paro Tschechu?
Who among the following is known as the ‘Father of the Green Revolution’ in the world?
‘Dakar Declaration’ is a joint statement related to
Which of the following is NOT a food preservative?
How big are red blood cells in diameter?
Warli painting is associated with which state in India?
Which of the following battles is considered the formal beginning of the British Raj in India?
Which country is the top aluminum exporter in the world?
Which layer of the earth's atmosphere contains the ozone layer?