+0  
 
0
518
2
avatar+97 

In 2012 the school roll decreased  by 5% to 741.
What was the school roll in 2011?

 Jun 15, 2015

Best Answer 

 #1
avatar+111392 
+10

If it decreased by 5%, then 741 is 95% of what it used to be.......so....

 

741 / .95 =  780    ....and that's what it was in 2011

 

 

 Jun 15, 2015
 #1
avatar+111392 
+10
Best Answer

If it decreased by 5%, then 741 is 95% of what it used to be.......so....

 

741 / .95 =  780    ....and that's what it was in 2011

 

 

CPhill Jun 15, 2015
 #2
avatar+109723 
+5

Thanks Chris,

 

I always think of it this way.

Let X be the original price.

Then 95% of X = 741

 

$$\\95\% * X = 741\\\\
$Divide both sides by 95$\%\\\\
X=741\div 95\%\\\\
X=741\div 0.95$$

.
 Jun 15, 2015

12 Online Users

avatar
avatar