When we say that the estimator is BLUE. What does best signify here?
When estimator is BLUE. Best signifies that it has minimum variance.
Seema’s present age is 1(1/2) times of her marriage. She married 12 years ago. Now she has a daughter whose age is 2 more than one third of her ag...
The ratio of age of A and his son is 8:5. If the difference of their ages 8 year ago is 15, then find the sum of ages of A and his son 10 year hence.
18 years ago the average age of a family of four members was 45 years. Two children were born in that span of 18 years. The present average age of the f...
A boy’s age is 140% of what it was 5 years ago, but 65% of what it will be after 10 years. What is his present age?
At the moment, Anuj and Bishnu have ages in the ratio of 3:4, respectively. If Bishnu's current age were 20% higher, the age gap between Anuj and Bishnu...
What is A's present age, if after 15 years his age will be 5 times his age 7 years back?
The ratio of Anil’s age to Anila’s age is 6 : 5 and the sum of their ages is 66 years. What will be the ratio of their ages after 14 years?
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 respective ratio of the present ages of A and B is 5:6. The present age of C is 20% more than that of B. The sum of the present ages of A, B and C i...
Present age of ‘A’ is 40% more than that of ‘B’. If 11 years hence from now, ‘B’ will be 5 years younger than ‘A’, then find the sum of ...
