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2. Riz sells rice and vegetables in the ratio of 8:3 respectively. If she sold a total of 605 kilograms for the Past week,how many kilograms of rice and how many kilogramsof vegetables did she sell?Ans:

1 Answer

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Let

x ----> kilograms of rice sold

y ----> kilograms of vegetables sold

we know that

x/y=8/3

x=(8/3)y --------> equation 1

x+y=605 -------> equation 2

Solve the system of equations

substitute equation 1 in equation 2

(8/3)y+y=605

solve for y

Multiply both sides by 3 to remove the fraction

8y+3y=1815

11y=1815

y=165

therefore

The answer is

165 kilograms of vegetables

and

x=(8/3)y ------> x=(8/3)165=440

440 kilograms of rice

User Ryan Bigg
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