Alkaline soils contain more of:
Soil alkalinity is associated with the presence of sodium carbonate (Na2CO3) or sodium bicarbonate (NaHCO3) in the soil
In a classroom there are 16 boys and 12 girls. Average age of each boy and each girl is 21 years and 17 years respectively. The sum of ages of all the b...
A school has 8 teachers and 4 administrators. The average age of the teachers is 40 years, and the average age of the administrators is 55 years. After ...
A is 2 years older than B while C is 3 years younger than B. The ratio of age of A, 6 years hence and age of B, 5 years ago is 5:4. What was age of C, 1...
5 years ago, the average age of a family of five persons was 30 years. In between these 5 years the family adopted a girl. Now at present the average ag...
My sister is 5 years elder to me. My father was 30 years of age when my brother was born while my mother was 28 years of age when I was born. If my bro...
At the time of their marriage, the ratio between the ages of Reena and Rahul was 9:10 respectively. After ‘y’ years of their marriage, a daughter wi...
The average age of Rohit’s parents is 42 years. The ratio of his father and mother’s age is 4 : 3 respectively. Find his mother’s age?
A is younger than B by 4 years. If the ratio of A and B ages is 9:10 respectively, then find the age of A.
The ratio of age of A and his son is 9:5. If the difference of their ages 6 year ago is 12, then find the sum of ages of A and his son 15 year hence?
Currently, the average age of individuals 'A' and 'B' is 27 years. If the present ages of 'B' and 'C' maintain a ratio of 10:11, determine the age of 'C...
