Question
An elephant can do a work as fast as two horses
‘A’ and ‘B’ can do it by working together. If horse ‘A’ alone can complete the work in 40 hours and horse ‘B’ in 60 hours, then find the time taken by elephant to complete the work.Solution
Let the total work = 120 units Efficiency of horse who can complete the work in 40 hours = 120/40 = 3 units/hour Efficiency of horse who can complete the work in 60 hours = 120/60 = 2 units/hour Therefore, time taken by both horses to complete the work together = 120/(3 + 2) = 24 hours Therefore, time taken by the elephant to complete the work = 24 hours
The sealing in aseptic packaging is known as __________
With respect to irradiation of food, which one of the following is INCORRECT:
__________ is an example Bio drainageÂ
Which of the following antibiotics component in corn leaves affects European corn borer?
Which one of the following statements is INCORRECT with respect to mass spectrometry?
What is the major use of Cashew Nut Shell Liquid (CNSL)?
Rice contains __% protein. Rice protein is known as ___
What is the term for a soil structure that is characterized by horizontal layers or plates of soil particles?
……………………..organisms that are capable of growth and reproduction in low temperatures, ranging from −20 °C to +10 °C. They are found ...
Which of the following elements is classified as an immobile nutrient in soil?