aever6981 aever6981

23-03-2020
Mathematics

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Mary is twice as old as Susan. Susan is five years younger than Janet. Janet is 12 years old. How old is Mary?

Respuesta :

jocey541 jocey541

23-03-2020

Answer:

Mary is 14 years old.

Step-by-step explanation:

Susan is 5 years younger than Janet and Janet is 12. So 12-5=7 so Susan is 7 and Mary is 2x as old as Susan. Therefore you do 2*7 =14.

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