A certain straight corridor has four doors, A, B, C and D (in that order) leading off from the same side. How far apart are doors B and C?

(1) The distance between doors B and D is 10 meters.
(2) The distance between A and C is 12 meters.

Correct answer marked below

Statement (1) ALONE is sufficient

Statement (2) ALONE is sufficient

BOTH statements TOGETHER are sufficient

EACH statement ALONE is sufficient

Statements (1) and (2) TOGETHER are NOT sufficient

Correct

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What this question tests

Your fluency with the order of operations, fractions, decimals, and basic number sense — the foundation every quant question leans on.

Applying the order of operations out of sequence or rounding intermediate values before the final step.

A certain straight corridor has four doors, A, B, C and D (in that order) leading off from the same side. How far apart are doors B and C?(1) The distance between doors B and D is 10 meters.(2) The distance between A and C is 12 meters.