Anxious
Only logged in members can reply and interact with the post.
Join SimilarWorlds for FREE »

It’s 3am.. I’m tired.. but is this equation missing some information?🤔

Apparently the answer is 50.. but it looks to me it could be 2000 or any number it don’t matter!
.. it don’t matter.

35 passed and 30% failed…

This page is a permanent link to the reply below and its nested replies. See all post replies »
FrozenWasteland · 61-69, M
Nope, it's all good.

Let n = number of students, p = number passed, f = number failed.

Obviously n = p + f, right?

p = 35 (given)
f = 30% of n = 0.3 * n

so

n = 35 + 0.3 * n

n - 0.3 * n = 35

0.7 * n = 35

n = 35 / 0.7 = 50
@FrozenWasteland
😳 holy chit Archimedes.

My teachers didn’t teach us that good 🥴
@FrozenWasteland well DANG !

colour me impressed