Mirror & Water Images
🔒 Log in to trackA vertical mirror reverses left-right (character order reversed and every character flipped); water reverses top-bottom (order kept, characters upside down). Know the symmetric letters for each (AHIMOTUVWXY for mirrors, BCDEHIKOX for water), use 11:60 − time for clock mirrors, and track one asymmetric feature in figure questions.
One page per subtopic: detailed notes, every question type, formulas, tricks and practice sets.
Every formula on one printable page, grouped by subtopic.
4 exam-level questions worked step by step.
56 questions — untimed practice or a timed test with analysis.
Track record in the exam
Questions per shift in recent SSC CGL papers.
Test difficulty mix (56 questions)
Question patterns exams keep repeating
Taken from previous-year papers. If a pattern is marked "very common", expect to see it in your exam.
Mirror image of a word or number
very commonA word or number with options, and the mirror is on its right or left side.
The order reverses, and each letter is flipped left to right.
Check the first letter and one odd-looking letter.
The mirror is on the right of the word BAT. Which letter is first in its mirror image?
The order reverses: T, A, B
Each letter is also flipped left to right
First letter: T (flipped)
Water image of a word or number
commonThe same question, but the mirror is below (water).
The order stays the same; each letter turns upside down.
B C D E H I K O X look the same in water.
How many letters of BUDGET look the same in its water image?
Letters that look the same: B C D E H I K O X
In BUDGET these are B, D and E
Count = 3
Mirror image of a figure
very commonA figure with a vertical mirror line beside it.
Left and right swap; top and bottom stay.
Follow one feature of the figure.
A dot is at the bottom-left of a figure. Where is it in the mirror image?
The mirror swaps left and right
Height does not change
The dot stays at the bottom: bottom-right
Water image of a figure
commonA figure with a horizontal line below it.
Top and bottom swap; left and right stay.
Follow one feature of the figure.
A dot is at the bottom-left of a figure. Where is it in the water image?
Water swaps top and bottom
Left and right do not change
The dot stays on the left: top-left
Mirror image of a clock
very common"A clock shows 7:05. What time does its mirror show?"
Subtract the time from 11:60.
For a time after 12:00, subtract from 23:60.
A clock shows 7:05. What time does its mirror image show?
Use 11:60 − time
11:60 − 7:05
= 4:55
Clock mirror plus time passed
occasionalA mirror shows one time and you must find the real time some minutes later.
First change the mirror time to the real time with 11:60 − time.
Then add or subtract the minutes.
A mirror shows 9:10. What is the real time 30 minutes later?
Real time now = 11:60 − 9:10 = 2:50
Add 30 minutes
Real time = 3:20
Count letters that look the same
common"How many letters of the word look the same in a mirror (or water)?"
Mirror-safe letters: A H I M O T U V W X Y.
Water-safe letters: B C D E H I K O X. Count each repeat.
How many letters of MATHEMATICS look the same in a mirror?
Mirror-safe letters: A H I M O T U V W X Y
M, A, T, H, M, A, T, I are safe (E, C, S are not)
Count = 8
Word that looks the same in its image
occasional"Which word looks the same in its mirror or water image?"
For water: every letter must be from B C D E H I K O X.
For mirror: every letter must be mirror-safe and the word must read the same backwards.
Which word looks the same in water: DECIDE or DEFINE?
Water-safe letters: B C D E H I K O X
DECIDE: D, E, C, I, D, E are all safe
DEFINE has F, which is not safe: DECIDE