This is an independent topic guide, not the official syllabus. Compare it with the current paper outline and rules published by the examination authority.
01 / UNDERSTANDING
Learning objectives
Study equivalent ratios, total-part allocation and linked ratios. Aim to translate words into a part diagram before using algebra or shortcut cross-multiplication in more complicated cases.
02 / UNDERSTANDING
The concept in context
A ratio compares quantities using a common scale. In a split of 2:3, the combined total has five equal parts, so the groups receive two fifths and three fifths. The ratio 2:3 does not mean that the first group receives two thirds of the entire total.
03 / UNDERSTANDING
A worked learning case
Original educational case. Two training teams share 150 practice booklets in the ratio 2:3. Five parts represent 150, so one part is 30 and the teams receive 60 and 90. If team membership changes, the old ratio cannot automatically be retained: the problem must state whether allocation still follows the original ratio or a new rule.
ORIGINAL EDUCATIONAL PRACTICE
Try it before you check.
Original practice: Divide ₹560 in the ratio 3:4. What is the smaller share?
Show the answer and reasoning
₹240.
The total number of parts is 3 + 4 = 7. Each part is ₹560 ÷ 7 = ₹80, and the smaller group receives three parts, or ₹240. The other share is ₹320. Adding the shares verifies the total, while 240:320 simplifies back to the required 3:4.
Two traps to watch for.
- Using one group’s parts as the combined denominator.
- Combining two ratios without equalising their common term.
YOUR TOPIC-SPECIFIC LEARNING MAP
Your revision map
Write the total number of parts.
Find one part before finding shares.
Check the reconstructed ratio and total.
Explain the idea, apply it to a new situation, then check what changed in your reasoning.
BANKERS TUTORIAL · SOURCE NOTES
Keep the source alongside your notes.
Official links provide subject context and authoritative reference material. This guide’s explanation, scenario and question are original Bankers Tutorial learning content.
- sbi.bank.in https://sbi.bank.in/web/careers/current-openings
- sbi.bank.in https://sbi.bank.in/webfiles/uploads/files_2627/09/SBI_JA-Customer_Support_Sales-IH_Pre-2026-27_Eng.pdf
For SBI preparation, check the current official notice before relying on changing dates, rules or examination requirements.
