What percentage of schools and houses were destroyed or damaged?

• A. 20%
• B. 25%
• C. 15%
• D. 30%

Answer: (A)

The main idea here is reading a data figure about damage to infrastructure correctly. The source states that around one-fifth of the schools and houses were destroyed or damaged. One-fifth equals twenty percent, so this figure matches precisely what’s given for that category. It’s counting all affected buildings, whether completely ruined or just damaged, so the percentage reflects the total impact on those structures. The other numbers would only fit if the data showed a different proportion for that category, but the cited source indicates about twenty percent.