SSC CGL Reasoning · Free notes
Mirror and Water Images: SSC CGL Reasoning
Mirror and Water Images has 122 questions in the SSC CGL Tier I bank: 77 from the 2023 shifts and 45 from the 2024 shifts. Seventy-two are EASY and only one is HARD, and in 119 of them the mirror stands beside the figure, so left and right swap while top and bottom stay. Every question is solved the same way: decide which way the mirror flips, strike the options that flip the other way, then check the few characters or parts that look different in a mirror.
The handout has every subtopic, worked example, formula and trap with answers shown.
Subtopic notes
Letters and Numbers in a Mirror
65 PYQsA string of letters, numbers and symbols seen in a mirror beside it (the order reverses and each character flips) or in a mirror below it, a water image (the order stays and each character turns upside down).
Figures in a Mirror
57 PYQsA drawn figure seen in a mirror beside it: everything swaps left and right, slanting lines and arrows change direction, and nothing moves up or down.
Formula & revision sheet
0 formulas · 12 gotchas across all subtopics — the exam-eve cheat-sheet
Formula & revision sheet
0 formulas · 12 gotchas across all subtopics — the exam-eve cheat-sheet
Watch out for (7)
- Calling a character unchanged when only its outline is close→ Which characters change in a mirror
- Using the wrong list for the mirror→ Which characters change in a mirror
- Reversing the order but not the characters→ A mirror beside the string
- Flipping the characters but keeping the order→ A mirror beside the string
- Turning a character upside down→ A mirror beside the string
- Turning instead of flipping→ A mirror below: the water image
- Reversing the order in a water image→ A mirror below: the water image
Watch out for (5)
- Turning the figure upside down→ One figure flipped left to right
- Leaving a slanting line as it was→ One figure flipped left to right
- Rotating the figure instead of flipping it→ One figure flipped left to right
- Moving the parts without flipping them→ Several parts in a frame
- Swapping the rows as well as the columns→ Several parts in a frame
PYQ weightage by concept
5 concepts · 122 PYQs — where the marks actually sit, so you know what to drill first
PYQ weightage by concept
5 concepts · 122 PYQs — where the marks actually sit, so you know what to drill first
| Concept | PYQs | Share |
|---|---|---|
| A mirror beside the string | 62 | 51% |
| A mirror below: the water image | 3 | 2% |
| Which characters change in a mirrorfoundation | — | — |
| Concept | PYQs | Share |
|---|---|---|
| Several parts in a frame | 35 | 29% |
| One figure flipped left to right | 22 | 18% |
Test yourself on Mirror and Water Images
20 past SSC CGL questions from this chapter, timed at 12 minutes and marked the way the exam marks it. You see your score and every answer the moment you finish. Free to start.