Question
Average of four numbers is 24. Sum of smallest and
largest number is 53. If difference between other two numbers is 1, then find the square of second smaller number.Solution
Let four numbers in increasing order is a, b, c and d. => a + b + c + d = 4 x 24 = 96 => a + d = 53 => b + c = 43 According to question, => c – b = 1 => b = 21, c = 22 => b² = 441
Regarding the reclamation of saline soils, which of the following statement is/are correct?
Which property of soil usually reflects the extent of leaching and weathering of soils?
The major microorganism that is considered most important as an indicator of soil quality is:
The EC of Sodic soil is __mmho/cm at 25 ℃ .
In which soil forming process are sodium ions accumulated on the clay's exchange complex, resulting in the formation of sodic soils?
The acidic soils can be reclaimed by the application of ____
……………………………. is the prominent member of 1:1 type group in which one tetrahedral and one octahedral layer is present.
...The saline soils contain toxic concentration of soluble salts in the root zone. These saline soils are also known as…………...
Which of the following is the progeny of breeder seed and is responsible for producing certified seed?
____ soil is also called as regur soil or the soil in which predominant crop grown is Cotton.
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