Question
Sum of ages of 60 students is 900 years such that the
average age of 25 of them is 10 years and average age of another 25 of them is 14 years. Find the average age of each of the remaining students.Solution
Given, sum of age of 60 students = 900 years
Sum of age of 25 students = 25 × 10 = 250 years
Sum of age of another 25 students = 25 × 14 = 350 years
Remaining number of students = 60 – 25 – 25 = 10
Average age of remaining 10 students = {(900 – 250 – 350)/10} = (300/10) = 30 years
Soil is a natural body composed of mineral and organic costituents, having definite genesis and a distinct nature of its own. Who amongst the following ...
…………………..measures the proportion of cation exchange sites occupied by sodium.
Which soil property is least affected by the size and arrangement of soil particles?
Acidic soils are generally found in the regions of
What chemical process results in the breakdown of silicate minerals by water, leading to the formation of clay minerals and soluble substances?
Which of the following element is mobile in soil but immobile in plants?Â
The liming material generally used for reclaiming acid soilsÂ
In which soil forming process are sodium ions accumulated on the clay's exchange complex, resulting in the formation of sodic soils?
Which soil forming process involves the deposition of materials removed from eluvial horizons into lower horizons, leading to the creation of illuvial h...
Soil texture is determined most commonly by which method?Â
Relevant for Exams:
