Pest population at a damaging level?
EIL is the lowest pest population which will cause economic damage.
The ratio of the present age of A to that of B is 7:9. Six years ago the ratio of 1/3 of A’s age at that time and 1/3 of B’s age at that time was 1:...
In a family a couple has a son and a daughter. The age of the father is four times that of his son and age of her daughter is half of her mother. The wi...
The current average age of 'Akhil', 'Bittu', and 'Chinu' is 42 years. 'Bittu's' age is 25% greater than 'Akhil's'. Twelve years from now, the age ratio ...
Ratio of present ages of A and B is 7:5, respectively. C who is 3 years older than A will become 36 years older after 12 years. Find the present age of B.
B is 4 years older than A and A is 8 years older than C. If the sum of the age of A and C is 22 years, then find the sum of the ages of all three.
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...
Present ages of P and Q are in the ratio 5:8 respectively. If Q’s age, 14 years hence from now will be 4 times of P’s age, 4 years ago from now, the...
A person’s present age is 4/5th of the age of his brother. After 10 years, he will be 9/10th of the age of his brother. How old is the brother at ...
4 years ago, the average age of a family of six persons was 30 years. In between these 4 years the family adopted a girl. Now at present the average age...
The ratio of age of ‘B’ after 7 years from now and age of ‘C’ 6 years ago from now is 7:4, respectively. The present age of ‘C’ is 30% of th...
