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Gcse question help!!!

Ali is
y
years old.
Bhavara is twice as old as Ali.
Ceris is 3 years younger than Ali.
The total of their ages is 125 years.
Work out the age of each person

Please show me your workings as I've been trying this for 10 minutes and cant seem to get the answer. I also looked at the mark scheme and still didnt get it.. Please help xxx
Ali: 'y' years old
Bhavara: '2y' years old (twice as old as Ali)
Ceris: '(y-3)' years old (three years younger than Ali)

Sum of their ages is 125 years so:

(y)+(2y)+(y-3)=125
3y+y-3=125
4y=128
y=32


SO, sub y into each age again:
Ali = y = 32 years old
Bhavara = 2y = 64 years old
Ceris = y-3 = 29 years old


Hope this helps x
Original post by alevelssuck_
Ali is
y
years old.
Bhavara is twice as old as Ali.
Ceris is 3 years younger than Ali.
The total of their ages is 125 years.
Work out the age of each person

Please show me your workings as I've been trying this for 10 minutes and cant seem to get the answer. I also looked at the mark scheme and still didnt get it.. Please help xxx


We know that Ali is y years old. Bhavara is twice as old as Ali, therefore they are 2y years old. Ceris is 3 years younger than Ali, therefore they are y-3 years old. How do you think that you can use this information, in combination with the statement "the total of their ages is 125 years" to work out their ages?
Reply 3
Avatar for Fnt1klo
Fnt1klo
2
A : B : C
Y. : 2y. : Y-3
Form an equation 4y - 3 = 125.
+3 to both side 4y = 128. Y = 32.
So, Ali = 32 , Bhavara = 64 and Chris = 29.
Original post by Fnt1klo
A : B : C
Y. : 2y. : Y-3
Form an equation 4y - 3 = 125.
+3 to both side 4y = 128. Y = 32.
So, Ali = 32 , Bhavara = 64 and Chris = 29.


Thank you.. I just realised I was reading the entire question wrong loool
Reply 5
Avatar for Fnt1klo
Fnt1klo
2
Original post by alevelssuck_
I get how you done the equation but I dont get why its just -3 why is not -3y... Like I dunno if I just over complicated it in my head

-3y is -3 multiplied by Y.
In this question is better to assume y as a number, if you're struggling to understand.
Chris is 3 years younger then ALI.
Let's assume y to be 8.
How would you do it now? 8-3 right? Hence y-3.
Original post by dramanoons
Ali: 'y' years old
Bhavara: '2y' years old (twice as old as Ali)
Ceris: '(y-3)' years old (three years younger than Ali)

Sum of their ages is 125 years so:

(y)+(2y)+(y-3)=125
3y+y-3=125
4y=128
y=32


SO, sub y into each age again:
Ali = y = 32 years old
Bhavara = 2y = 64 years old
Ceris = y-3 = 29 years old


Hope this helps x


Thank you so much xx
Thanks it really helped me understand how to solve it thank you
Ali = YBha = 2YCer = Y - 3ThenY 2Y Y-3 = 1254Y - 3 = 1254Y = 128Ali = Y = 32Bha = 2Y = 64Cer = Y - 3 = 29

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