Feel free I will provide you RRB Traffic and Commercial Apprentice exam syllabus, so that it would be easy for you to prepare accordingly.

Here is the syllabus

Numerical Ability and Quantitative Aptitude
HCF and LCM
Percentages
Time and Work
Simple Interest
Trigonometry
Number System
Averages
Ratio and Proportion
Boats and Streams
Simple Algebra
Simplification
Ages
Time, Speed and Distance
Compound Interest
Area and Volumes
Square roots and Cube roots
Profit and Loss
Problems on Trains
Probability
Simple Geometry

General Knowledge
Odd One Out
Direction Test
Series
Syllogisms
Embedded figures
Pair Formation
Blood Relations
Missing Numbers
Dice and Cubes
Water Image
Coding- Decoding
Ranking
Venn diagrams
Paper Cutting and Folding
Mirror Image
English Alphabet Problems
Calendars and Clocks
Matrix
Analogies

General Science
Physics
Chemistry
Biology

Reasoning and Artificial Intelligence
Economics
Geography
History
Polity
Science in daily day life
Current Affairs
Sports etc.