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My Mum was 27 when I was born. 8 years ago she was twice as old as I shall be in five years time. How old am I now?

 Jun 8, 2020
 #1
avatar+24342 
+1

M = age now = Y + 27

M-8 = 2(Y+5)

 

Y+ 27 -8 = 2Y + 10

Y = 9 y/o

 Jun 8, 2020
 #2
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Please could you make this more simple as I am in year 5 and you are obviouslly really good a maths and I do not understand this at all.#

Guest Jun 8, 2020
 #3
avatar+24342 
+1

M = moms age now      this is given as 27 + Your age now  

 

8 years ago   your mom was 8 years younger   this means she was  27+ Y  - 8

in 5 years you will be   Y+5      two times this is   2 (Y+5) = 2Y + 10     and this equals   27+Y-8

 

27+Y - 8 = 2Y + 10     simplify

19 + Y = 2Y + 10     subtract 10 from both sides of the equation

Y + 9 = 2Y               subtract Y from both sides

9 = Y   

ElectricPavlov  Jun 8, 2020
 #4
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So am I basiccaly 9 years old then?

 Jun 8, 2020
 #5
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Mentally you are closer to 5.

Guest Jun 8, 2020

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