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If A:B=2:3, B:C=5:7 and C:D=3:10, then find the value of A:D

 Jun 30, 2020
 #1
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It is a very simple proportional relationship:

 

If A:B=2:3, B:C=5:7 and C:D=3:10, then find the value of A:D

 

A/D = A/B  * B/C  *  C/D

 

A/D =2/3  *  5/7  *  3/10

 

A/D = 30 / 210 = 1 / 7

 

Therefore: A:D = 1 : 7

 Jun 30, 2020

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