When a number is added to another number the total becomes 33 1/3 percent of the second. What ratio between the first and the second?
Correct Answer : C
If A:B is 2:3 and B:C is 3:4 then A:C is equal to
Three years ago , the average age of A, B and C was 27 years and that of B and C, 5 years ago was 20 years. A’s present age is
Ratio of the earnings of A and B is 4 : 7. If the change of A increase by 50% and those of B decrease by 25%, the new ratio of their earnings becomes 8 : 7. What are A’s earnings?