František 72084

Peter and František are 102 years old. František is 12 years younger than Petr. How old is Peter?

Correct answer:

p =  57

Step-by-step explanation:

p+f=102 f=p12  f+p=102 fp=12  Row2Row1Row2 f+p=102 2p=114  p=2114=57 f=102p=10257=45  f=45 p=57



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