Usain

Usain and Kyle rented a house together for 3 years. Usain paid more rent because he had a bigger room. They always split the rent at a ratio of 4:3. They paid £30247 in rent over this period. How much of this did Usain pay?

Final Answer:

a =  17284

Step-by-step explanation:

$$\begin{gathered} s=30247 \\ a:b=4:3 \\ a+b=s \\ x=s/(4+3)=30247/(4+3)=4321 \\ b=3\cdot x=3\cdot 4321=12963 \\ a=4\cdot x=4\cdot 4321=17284 \end{gathered}$$

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