78 79 75 84 ? 93 57
The series is: 78 + 12 = 79 79 – 22 = 75 75 + 32 = 84 84 – 42 = 68 68 + 52 = 93 93 – 62 = 57
2 years ago, age of A and B was in the ratio 2:3. After 6 years, the ratio becomes 6:7. Present age of C is 6 years more than the present age of B. Find...
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...
The ratio of the present ages of Ginni and Binni is 7:3 respectively. Ginni is ‘n’ years older than Binni. If after 5 years, the ratio of the ages o...
In a classroom there are 11 boys and 9 girls. Average age of each boy and each girl is 18 years and 15 years respectively. The sum of ages of all the bo...
B is 5 years older than A and A is 8 years older than C. If the sum of the age of A and C is 24 years, then find the sum of the ages of all three.
Three years ago, the ratio of ages of Rohit and Mohan was 6:7, respectively. Five years hence, the ratio of ages of Soham and Mohan will be 3:4, respect...
The ages of A, B and C together are 64 years. B is twice as old as A and C is 4 years older than A. What is the difference between ages of B and C?
The ratio of the present ages of a son and his father 3:7 and that of his mother and father is 6:7. Four years ago, the ratio of the age of the son that...
When 16 years is subtracted from the present age of A and the obtained result is divided by 3, then the present age of his nephew is obtained. If the pr...
The sum of the ages of A and B is (3x + 10) years. 5 years ago, the ratio of their ages was 4:5. Find the present age of A, if B is 4 years older than A.
