Let the length and speed of the train ‘A’ be ‘l’ metre and ‘s’ m/s, respectively. According to question, l = 10s Also, 12s = 10s + 140 Or, 2s = 140 Or, s = 70 Therefore, length of train ‘A’ = 10s = 700 metres Length of train ‘B’ = 140 × (5/2) = 1750 metres Required time taken = 1750 ÷ 20 = 87.5 second
Power operated machines are operated at pressure ranging from:
What will be the weed control efficiency (%). if the number of weeds in clodinafop treated plot is 190/ m² and that in a control plot is 361/m²? <...
Neolissochilus hexagonolepis is commonly known as
Which is color of the symbol of vegetarian food ?
Which one is considered in feasibility survey ?
Who coined the term 'Green Revolution"?
Actinobacteria are ______ as they grow in soils having relatively less moisture and partially decomposed resistant organic matter.
What is the colour of certification tag for certified class seed?
What is the harvesting stage of Arecanut?
Which soil requires frequent irrigation?