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a_sh-v [17]
3 years ago
15

Elena and her grandfather both just had birthdays last week. The sum of their ages is 100 years. Her grandfather’s age is 4 time

s Elena’s age. How old are Elena and her grandfather?
Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer:

Grandfather age = 20 * 4 = 80

Step-by-step explanation:

Let Elena age be x

grandfather age is 4x

x + 4x = 100

5x = 100

x = 100/5 = 20 = Elena age

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