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2 years ago

HELP ASAP! AGE PROBLEM!! WILL MARK BRAINLIEST!!!

Mathematics

1 answer:

Gennadij [26K]2 years ago

5 0

Answer:

The present age of the mother is 30 years old

Step-by-step explanation:

Age of Jane = x

Age of Billy = 5x (Billy is five times as old as Jane)

Age of Sara = 15x (Their mother is now three times as old as Billy)

In 2 years Sara will be eight times as old as Jane, therefore:

15x + 2 = 8 (x + 2)

15x + 2 = 8x + 16

15x - 8x = 16 - 2

7x = 14

x = 14/7

x = 2 ⇒ 5x = 10x ⇒ 15x = 30

Jane's present age is 2, Billy's present age is 10 and Sara's present age is 30

The present age of the mother is 30 years old

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