A mirror lies along the horizontal line MN under 841275. Which option shows the image formed in it?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) →
A water surface (a horizontal mirror line) turns top into bottom: every character stays in its own place, the order 8 4 1 2 7 5 does not change, and each character is turned upside down. 8 looks the same after this flip, so it keeps its shape.
Option (1) — Incorrect. This is the group turned through 180° (half a turn): each character is flipped both ways, so it is upside down as well as reversed.
Option (2) — Incorrect. This is the image in a vertical mirror: the order is reversed and the characters are turned left to right, not upside down.
Option (4) — Incorrect. The character 7 is in the right place but is not turned upside down; everything else is correct.