Question

Kier is 3 times as old as lapu. 8 years from now, kier will be twice as old as lapu. How old is lapu? ​

Answer 1

Step-by-step explanation:

step 1: Let claire age be x

step 2: Representing the information mathematically, we have

in 10 years, meaning the present age (x) + 10

x + 10

While in 10 years time, she is 3 times her age today [her age is x]

x + 10 = 3x

step 3: collect like terms

10 = 3x - x

10 = 2x

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Answer 2

Answer:

Let Lapu's age be X years.

Then Kier's age = 3X years

8 years hence ,

3X +8 = 2(X+8)

3X + 8 = 2X + 16

3X - 2X = 16 -8

X = 8

Lapu's current age = 8 years