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P5 Mathematics

Question post on Sun, 08/05/2022 9:34pm

Please help. Thanks!

sushi88 · Answer 1 · Post on Sun, 08/05/2022 10:37pm

Alan’s brother = 4

Alan = 4 + 12 = 16

A [———16——-][—-u—-]

B [—–4 + u —][—4 + u —-]

u = number of years later

2(4+u) = 16+ u

8 + 2u = 16 + u

Therefore u = 16-8 = 8 years later

hnghng · Answer 2 · Post on Mon, 09/05/2022 8:50am

hnghng Post on Mon, 09/05/2022 8:50am

Thank you so much Sushi88!

sushi88 · Answer 3 · Post on Mon, 09/05/2022 10:33am

sushi88 Post on Mon, 09/05/2022 10:33am

Most welcome! 🙂

ChiefKiasu · Answer 4 · Post on Mon, 09/05/2022 8:43am

ChiefKiasu Post on Mon, 09/05/2022 8:43am

That’s an excellent answer to a most commonly asked question!

sushi88 · Answer 5 · Post on Mon, 09/05/2022 10:48am

sushi88 Post on Mon, 09/05/2022 10:48am

Thank you.