Question
‘P’ alone can complete a work in 25 days while
‘P’ and ‘Q’ together can complete the whole work in 15 days. Find the time taken by ‘Q’ alone to complete the whole work.Solution
Let total work = 150 units (LCM of 25 and 15)
Amount of work completed by ‘P’ alone in one day = 150/25 = 6 units
Amount of work completed by ‘P’ and ‘Q’ together in one day = 150/15 = 10 units
Amount of work completed by ‘Q’ alone in one day = 10 − 6 = 4 units
Desired time taken by ‘Q’ alone to complete the work = 150/4 = 37.5 days
Which method measures soil moisture content by drying a sample in an oven and determining the percentage of moisture loss?
The indicator plant for zinc deficiency is ____
The acidic soils can be reclaimed by the application of ____
Disorders like Hollow Stem of Cauliflower; Browning of Cauliflower ; Top sickness of Tobacco is caused due to the deficiency of
Under Soil Health Card Scheme, what is the cycle of testing of soil for irrigated area and area from which single sample is to be drawn?
Reward of land is
The major microorganism that is considered most important as an indicator of soil quality is:
Flooding is the method used for the reclamation practice in which of the problematic soil?
The soil amendment used for the reclamation of Sodic soil is
Which one of the following soil orders has the highest area in India?
