Question
A high-speed Bullettrain takes 20 seconds to cross a
platform. The length of the Bullettrain is 40% less than the length of the platform. If the Bullettrain's speed is increased by 25%, what will be the time taken by the train to cross a pillar?Solution
ATQ, Let the length of the platform be '10a' metres So, length of the train = 10a Ă— 0.6 = '6a' So, speed of the train = {(6a + 10a)/20} = '0.8a' m/s So, new speed of the train = 0.8a Ă— 1.25 = 'a' m/s So, required time = 6a Ă· a = 6 seconds
“As we increase the production of one good, the opportunity cost to produce the additional good will also increase”, this is stated in
Which river in the world holds the highest volume of water?Â
Which of the following scheme is related to organic farming initiatives in India?
The Agricultural Produce (Grading and Marketing) Act was passed in which year?Â
Rice weevil is the name of:
Insecticide Act was enacted onÂ
The pest density at which control measures should be applied to prevent an increasing pest population is _____
Under which ministry national food security act enacted in 2013Â Â Â
An element has 8 electrons in its valence shell. Which of the following statements is correct?
The disease related with apple is known as