Question
750 metres long train crosses a man who is moving in the
same direction with a certain speed, in 50 seconds. If the same train can cross a tree in 20 seconds with the same speed, then find the speed of the man.Solution
Speed of train = 750/20 = 37.5 m/sec Let the speed of the man be ‘s’ m/sec Relative speed of the train = (37.5 – s) m/sec According to the question, (37.5 – s) = 750/50 Or, s = 37.5 – 15 = 22.5 Therefore, speed of the man = 22.5 m/sec
Modified stem of Banana is
Sterols which is less prevalent in plants
Cation exchange capacity is found minimum in the case of:
Nutritional quality has been improved by the addition of vitamin A by genetic engineering in which plant
Attitude scales are used to measure:
Which of the following gases has 20 times more potential for causing global warming than CO2
What is the goal of the National Mission on Edible Oils (NMEO)-Oil Palm?
Which state contributed the highest share to India’s total meat production during 2023-24?
What is the prize for the 1st Rank Best Dairy Farmer in the National Gopal Ratna Award 2025?
“Triple response”, a key reaction of ethylene, is characterized by: