$1222 is divided among $2X$, $6Y$, and $8Z$ such that the shares of $X$, $Y$, and $Z$ are in the ratio $3:2:1$. We need to find how much $X$ gets.

AlgebraRatio and ProportionLinear EquationsWord Problem
2025/3/21

1. Problem Description

1222isdividedamong1222 is divided among 2X,, 6Y,and, and 8Zsuchthatthesharesof such that the shares of X,, Y,and, and Zareintheratio are in the ratio 3:2:1.Weneedtofindhowmuch. We need to find how much X$ gets.

2. Solution Steps

Let xx, yy, and zz be the amounts received by 2X2X, 6Y6Y, and 8Z8Z respectively.
We are given that the ratio of the shares of XX, YY, and ZZ is 3:2:13:2:1. Thus, we have
X:Y:Z=3:2:1X:Y:Z = 3:2:1.
We can represent this as X=3kX = 3k, Y=2kY = 2k, and Z=kZ = k for some constant kk.
Then we know that 2X2X receives xx, 6Y6Y receives yy, and 8Z8Z receives zz.
We have x=2X=2(3k)=6kx = 2X = 2(3k) = 6k, y=6Y=6(2k)=12ky = 6Y = 6(2k) = 12k, and z=8Z=8(k)=8kz = 8Z = 8(k) = 8k.
The total amount is 12221222, so x+y+z=1222x + y + z = 1222.
Substituting the expressions for xx, yy, and zz in terms of kk, we have
6k+12k+8k=12226k + 12k + 8k = 1222.
26k=122226k = 1222.
k=122226=47k = \frac{1222}{26} = 47.
Now we can find the amounts received by 2X2X, 6Y6Y, and 8Z8Z.
x=6k=6(47)=282x = 6k = 6(47) = 282.
y=12k=12(47)=564y = 12k = 12(47) = 564.
z=8k=8(47)=376z = 8k = 8(47) = 376.
We want to find how much XX gets, which is 2X=x=2822X = x = 282. Since X=3kX = 3k, then 2X=6k=2822X = 6k = 282.
Since we are looking for the amount XX gets, and X=3kX=3k, we want to determine the value of XX. We know k=47k=47, so X=3(47)=141X=3(47) = 141.

3. Final Answer

141

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