Five years ago, John’s age was half of the age of Mary. John is 4 years younger than Mary now. How old is John now

Mathematics

1 answer:

cupoosta [38]2 years ago

3 0

John is 9 yrs old now and Mary is 13
He was 4 yrs old 5 years ago and Mary was 8 yrs old so he was half her age

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Answer

Find out the Area of a triangle .

To proof