+0  
 
0
63
1
avatar

A ratio of white to black cars is 2:7 A ratio of white to red cars is 3:11 There is a total of 343 white red and black cars How. Many black cars are there

Guest Jun 15, 2017
Sort: 

1+0 Answers

 #1
avatar
0

Let the number of white cars =W

Let the number of black cars  =B

Let the number of red cars      =R

 

W/B =2/7

W/R =3/11

W + B + R =343, solve for W,B, R

W = 42 White cars

B = 147 Black cars

R = 154 Red cars

Guest Jun 15, 2017

24 Online Users

avatar
avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details