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Part ACSIR NET December 2024the-thickness-is-in-centimetres

The thickness is in centimetres

A block of marble 4 m × 3 m × 2 m in size is cut into square tiles of 1 m side having thickness of 10 cm. Assuming there is no wastage in cutting, how many tiles will be made?

  1. A.120
  2. B.240✓ Correct
  3. C.360
  4. D.480

You have the answer. Trap Analysis is why the other three were written.

Not a worked solution repeated four times — the specific reasoning error each wrong option was built to reward, and why this one tests execution slip.

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50 are analysed free — try those first.

The trap it tests

Execution slip

The idea was right. The computation was not.

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