Sonal attended her school on 204 days in a full year. If her attendance is 85%, find the number of days on which the school was opened.

Question

Philoid · Accepted Answer

Let the number of days the school was opened = Z

∴ Percentage of attendance = 85% of Z

Now,

85% of Z = 204

⇒ 85/100 × Z = 204

⇒ Z = 204 × 100/85

⇒ Z = 204 × 20/17 [Divided by 5]

⇒ Z = 12 × 20

⇒ Z = 240