At present

At present, Ram is eight years younger than Susan, and Hari is two years younger. If the respective ratio between the present age of Ram and that of Hari is 3: 4, then what is Hari's present age?

Final Answer:

h =  24

Step-by-step explanation:

$$\begin{gathered} r=s-8 \\ h=s-2 \\ r:h=3:4 \\ r:h=3:4 \\ 4r=3h \\ 4(s-8)=3h \\ 4((h+2)-8)=3h \\ 4\cdot ((h+2)-8)=3\cdot h \\ h=24 \\ \text{ Verifying Solution: } \\ s=h+2=24+2=26 \\ r=s-8=26-8=18 \\ w=r:h=18:24=\frac{3}{4}=0.75=3:4 \end{gathered}$$

Try another example