The ratio of present age of grandfather, father, mother and son is 26:15:11:7. Before 10 years, the ratio of age of grandfather and son was 13:3. what will be the average of the age of father and mother after 10 years?

Question : The ratio of the ages of the father and the mother was 11 : 10 when their son was born. The ratio of ages of the father and the mother will be 19 : 18 when the son will be twice his present age. What is the ratio of the present ages of the father and the mother?

Option 1: 15 : 14

Option 2: 14 : 13

Option 3: 16 : 15

Option 4: 17 : 16

Question : 5 years ago the average age of a family which includes a father, a mother, and a son was 35 years. 3 years ago the average age of father and mother was 46 years. What is the present age (in years) of the son?

Option 1: 20

Option 2: 24

Option 3: 26

Option 4: 22

Question : The ratio of the present age of the father to that of his son is 7 : 2. If after 10 years the ratio of their ages becomes 9 : 4, then the present age of the father is:

Option 1: 43 years

Option 2: 35 years

Option 3: 37 years

Option 4: 40 years

Question : The sum of the present ages of a father and his son is 94 years. 8 years ago their respective ages were in the ratio of 2 : 1. After 10 years what will be the ratio of ages of father and son?

Option 1: 35 : 22

Option 2: 14 : 13

Option 3: 25 : 18

Option 4: 16 : 15