Rapid Revision · Logical Reasoning
Decode who is whose father, aunt or nephew from a chain of clues. Draw a quick family tree with symbols and these stop being confusing.
If you read nothing else tonight, read these 5 lines.
6 cards, each one idea: what it is, a worked example, and the trap to dodge.
A tiny diagram beats holding relations in your head. Put the person being described at the bottom and work upward through parents and grandparents.
'He is the son of my grandfather's only son' => the man is the speaker's brother.
Trap: 'Only son of my grandfather' is the speaker's father, so his son is the speaker's brother.
Group people by generation (grandparents, parents, self, children). Uncles, aunts and in-laws sit one generation up or across, never below the self line.
Mother's brother = maternal uncle; father's sister = paternal aunt.
When relations are given as symbols (A + B means A is the father of B), translate each symbol first, then chain them into a tree.
If + is 'father of' and - is 'mother of', then A + B - C means A is C's grandfather.
Trap: Direction matters: A + B is not the same as B + A.
Marriage links two trees. Husband and wife share a line; their siblings become brothers or sisters-in-law, their parents become in-laws.
Wife's brother = brother-in-law; son's wife = daughter-in-law.
For 'family of six' puzzles, write every clue as a mini-relation, then merge. Track who is male or female and how many of each as you go.
Trap: Watch the classic 'two fathers and two sons' phrasing, it can mean grandfather-father-son, only three people.
Once the tree is drawn, re-read the question and trace the exact path asked. A one-word slip (nephew vs cousin) is where marks are lost.
'How is X related to Y' asks for X's role, not Y's.
A recap is not practice. These are the creators we rate for real depth on blood relations; full credit to each.
Each recap takes 3 minutes; the full set covers everything the first round tests. And when the test is cleared, your resume takes the next screen.
Original content by OptiResume; facts and formulas are common knowledge, the wording is ours. Go-deeper links go to creators we rate; we are not affiliated with them.