What is the ratio of houses with smoke alarms to houses without smoke alarms on Gleaner Street?

1) On Gleaner Street, 7/18 of the houses do not have smoke alarms.
2) There are 90 houses on Gleaner Street.

Correct answer marked below

Statement (1) ALONE is sufficient

Correct

Statement (2) ALONE is sufficient

BOTH statements TOGETHER are sufficient

EACH statement ALONE is sufficient

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

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Comments

LeoJul 22, 2025

Thanks!

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.

What is the ratio of houses with smoke alarms to houses without smoke alarms on Gleaner Street?1) On Gleaner Street, 7/18 of the houses do not have smoke alarms.2) There are 90 houses on Gleaner Street.