Question
Crop yields has dropped and the soil has turned acidic
as the consequence of overuse of synthetic fertilisers. The process of neutralizing acidic soil by the addition of calcium hydroxide is known as _________Solution
·      To neutralize acidic soils, calcium hydroxide, ammonium sulphate, limestone, Hydrated lime etc. are added to the soil.
At present, Peter is Seven years younger than Adam. Adam’s age twenty years hence will be equal to thrice that of peter Five years ago. What will ...
The average of present ages of Rajesh and his father is 45 years. The age of Rajesh 5 years hence from now will be 1/4 of the pre...
The current ratio of the ages of 'Armaan' and 'Bittu' is such that six years from now, it will be 5:4, respectively. Presently, 'Chetna's age exceeds 'B...
The ratio of age of ‘B’ after 5 years from now and age of ‘C’ 4 years ago from now is 7:4, respectively. The present age of ‘C’ is 40% of th...
A’s age is the fourth part of his father’s age. After 8 years, the age of A’s father will be twice the age of B. If B’s 7th birthday is celebrat...
A is younger than B by 4 years. If the ratio of A and B ages is 5:7 respectively, then find the age of A.
The sum of the ages of C and D after 10 years will be 100 years. If the ratio of their present ages is 9:7, find the difference between their ages.
- The average age of (x + 7) interns is 19 years. After adding a 41-year-old mentor, the average rises to 20 years. Find x% of 500.
Present age of ‘A’ is 40% more than that of ‘B’. If 11 years hence from now, ‘B’ will be 10 years younger than ‘A’, then find the sum of...
A is younger than B by 5 years. If the ratio of A and B ages is 7:8 respectively, then find the age of A.
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