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masha68 [24]
3 years ago
10

Eleana and her grandfather both had birthdays last week.

Mathematics
1 answer:
Galina-37 [17]3 years ago
5 0

Answer:

Eleana is 20 years old.

Her grandfather is 80 years old.

Step-by-step explanation:

Suppose Eleana's age is "x". That means her grandfathers age is 4x.

x+4x= 100

5x=100  Divide both sides by 5

x=20   That means Eleana is 20 years old.

           Her grandfather would be 4 times her age so his age would be 40  years old.

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