Question
P does one fourth as much work as Q in two third of the
time. If together they take 24 days to complete the work, how much time shall Q take to do it?Solution
Let the whole work be done by Q in x days In 2/3 rd of time work by P = 1/4 1/4 of work is done by P in 2/3x days Whole work is done by P in (4 × 2)/(3× x) days = 8/3x days => 1/x + 3/8x = 1/24 => (8+3)/(8x) = 1/24 => x = 33 days
What should be the optimum temperature range for the growth of mesophilic bacteria?Â
The optimum temperature for growth and head of cabbage is ________
Rice stem borers lay eggs on which one of the following parts of the plant?
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.Â
Assertion A: The colloidal surfaces of h...
Scientific name of potato is:
Level of optimum production is available at
What is the term for the process of converting atmospheric nitrogen gas into a form that plants can absorb?
For the farmers, ………………………………. Soil structure is favourable for plant growth.
...The groundwater table is measured by:
The gradual increase in the concentration of nutrients in an aging aquatic ecosystem such as a lake is called ____