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Cheko and Keddy collected 370 toy cars altogether. 1/4 of Cheko's toy cars was 25 more than 1/5 of Keddy's toy cars. How many more toy card did Cheko collect than Keddy?

 Oct 4, 2021
 #1
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Let c = Cheko's toy cars and k = Keddy's toy cars. 

c + k = 370
0.25c = 0.2k + 25

 

20c = -20k + 7400 
25c = 20k + 2500

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45c = 9900

c = 220

c + k = 370
(220) + k = 370
k = 150 

220 - 150 = 70

 

Cheko collected 70 more cars than Keddy. 

 Oct 5, 2021

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