Question
Amit is 66(2/3)% more efficient than Vivek who can do
the same work in 25% more time than Sameer. If Amit and Sameer together can complete 70% of work in 15 days, then in how many days 90% of work can be completed by Vivek and Sameer together.Solution
Ratio of efficiency of Amit and Vivek = 5:3 Ratio of time taken by Vivek and Sameer alone to complete the work = 5:4 Ratio of efficiency of Vivek and Sameer = 4:5 ⇒  Ratio of efficiency of Amit, Vivek and Sameer = 20: 12: 15 Total unit of work = (15/70) × 100 × 35(20 + 15) = 750 units Required time = (750/27) × (90/100) = 25 days
Which among the following crops is a photoperiod-sensitive crop?
The edible part of a potato plant is the modification of which part of potato plantÂ
An example for minor millet crop isÂ
 ‘Pusa Naveen’ is a variety of:
The rate of decrease of temperature with height is known as:
Which are of the following is an asymmetrical triazine?
Which type of meristem is responsible for the increase in girth or thickness of plants?
What is the primary source of silicon in soil minerals?
The system of growing same crop on same land year after year is known as:Â
Which of the following pair is not correctly matched?
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