An aptitude is a combination of characteristics of an individual’s capacity to acquire some specific knowledge skills or set of organized responses such as ability to speak a language, to become a musician, to do mechanical work.
     1.     Scope of Aptitude:-
Aptitude refers to those qualities of a person which serves to indicate how well he can learn to meet and solve certain kind of problems (Bingham: 1937)
Aptitude is a condition, a quality which will enable an individual under suitable training some knowledge skill understanding mechanical ability mathematical ability or ability to read and speak a foreign language. Aptitude is a specific capacity distinct from interest and general intellectual ability of an individual which indicates success in a particular field . It is forward looking in nature as it gives indication of future progress whereas ability confines itself to present performance. Aptitude tests have wide range of application. They have proved to be backbone of all kinds of guidance and selection program as they are useful for predicting suitability of individuals for specific jobs and lines of work. In everyday life we come across individuals who excel over others under similar conditions in acquiring certain knowledge or skill.
 2.    Development of Aptitude:-
An aptitude is a component of a competency to do a certain kind of work at a certain level, which can also be considered "talent". Aptitudes may be physical or mental. Aptitude is developed knowledge, understanding, learned or acquired abilities (skills) or attitude. The innate nature of aptitude is in contrast to achievement, which represents knowledge or ability that is gained through learning.
For example if someone wants to develop my aptitude for studies he needs to follow these steps.
1. Get good study material
2. Constant and consistent practice
3. Planning
4. Presence of mind.
5. Time management is and proves more suitable and efficient among peers in specific fields.
An aptitude is an innate inborn ability to do a certain kind of work. Aptitudes may be physical or mental. Many of them have been identified and are testable. 
1. Capability; ability; innate or acquired capacity for something; talent:
She has a special aptitude for mathematics.
2. Readiness or quickness in learning; intelligence:
 He was placed in honors classes because of his general aptitude.

3. The state or quality of being apt; special fitness.