Problema Solution
Daniel is 8 years older than Umaima. Daniel and Umaima first met four years ago. Five years ago, Daniel was 5 times as old as Umaima. How old is Umaima now?
Answer provided by our tutors
Let
d = Daniel's age now
u = Umaima's age now
Daniel is 8 years older than Umaima:
d = u + 8
Five years ago, Daniel was 5 times as old as Umaima:
d - 5 = 5(u - 5)
We have the following system of equations:
d = u + 8
d - 5 = 5(u - 5)
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d = 15 years
u = 7 years
Umaima is 7 years old now.