Quantitative Aptitude Ages Study Material
In “Problems based on age's usually relationships between the ages of two or three persons at two different time are given and we are required to find the ages of these persons. Such problems can be solved by the knowledge of “Linear Equations”. However, in certain cases we can find short-cut methods of deriving direct formulae. This will save lot of precious time. Time-scale is divided into three parts-past, present and future. Problems usually state the relationship between ages of persons for two out of three parts of time-scale. These relationships are either in the form of ratio of their ages or alternatively as number of times one’s age is of the other. Sometimes, instead of stating the ratio of ages of two persons for two different parts of time-scale, only one such relationship is given. The other condition is stated in one of these forms--sum of their ages, difference of their ages or produpt of their ages. The main point that we have to see (e.g., in ca$e of two persons) that there are two unknowns (ages of two persons) to be found and hence we must have two unique relationships to solve these problems. Although types of problems on ages can be too many, we try to cover here all those types of problems which are commonly asked in competitive exams.
No comments:
Post a Comment