Three consecutive vertices of a parallelogram ABCD are A (1, 2, 3), B (– 1, – 2, – 1) & C (2, 3, 2) Let the forth vertex be D(x,y,z). 
D (4, 7, 6)
K is as much younger than M as he is older than O. If the sum of the ages of M and O is 100 years, what is definitely the difference between M and K’s...
Present ages of 'P' and 'Q' are in ratio 5:6, respectively. If ten years hence from now, age of 'P' will be 25% less than that of 'Q', then find the rat...
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...
When 16 years ago age of Ram was divided by 24, the present age of his granddaughter Surbhi is obtained. If Surbhi is 3 years younger than...
The ratio of A and B present age is 3:2. The product of their ages is 2400. What will be the ratio of their ages after 5 years?
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?
7 years ago, the ratio of the ages of Pia and Qasim was 9:7. The present age of Tom is 20 years more than one-seventh of Qasim’s present age. Find Tom...
Present average of age of A and B is (9x-15) years. Present average age of A, B and C is (6x+5) years. If present age of B is 20% less than the present ...
The total age of A, B and C five years hence will be 85 years. Find the age of C four years hence, if the present age of A and B is 32 years and 21 year...
The present ages of A and B are in the ratio 4:5. Sixteen years from now, B's age will be 15% more than A's age at that time. If C's current age is thre...
