Question
Which of the following exchangeable sodium percentage is
characteristic of alkaline soils?Solution
Alkaline soils, also known as sodic soils, typically have an exchangeable sodium percentage (ESP) greater than 15%, which affects soil structure and fertility.
5years ago, the ages of 'Arunita' and 'Bhasker' were in the ratio 2:3. 5years from now, the age of 'Arunita' will be 25% less than that of 'Bhasker'. De...
The current ages of 'Kabir' and 'Rohan' are in the ratio 2:3. Two years from now, Kabir’s age will be 40% less than Rohan’s age. Find Kabir’s pres...
Present average age of 4 friends: ‘A’, ‘B’, ‘C’ and ‘D’ is 20 years. If their ages are in the arithmetic progression in the same order a...
The average age of 66(2/3)% of the number of children in a group is 13 years. The average age of all the children in the group is 14.5 years. What is t...
The current age ratio of Amit to Bishnu stands at 5:8. Given that the ratio of Amit's age 9 years in the future to Bishnu's age 1 year in the past is 4:...
 Rohan's present age is 3/7 times the age of his mother. After five years, he will be one- half of the age of his mother. How old is his mother at pres...
The present age of Surjeet and Rakesh are in the ratio of 4:5. After 8 years the ratio of their ages will be 6:7. What is 70% of the sum of their presen...
The current age of 'P' is 40% more than the current age of 'Q'. Seven years from now, the ratio of their ages will be 14:11. What...
Two years ago, the ages of A, B, and C were x−6x - 6, x+10x + 10, and x+14x + 14 years respectively. If the average of their current ages is 38 years,...
Father’s age : Son’s age = 5 : 2. After 12 years, ratio becomes 7 : 4. Find present ages.
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