Question

The decimal 1.4 is twice the other decimal . If the other decimal is x , and sum of these decimals is 4.8 , find the two decimals .

Answer 1

$$\begin{gathered} \mathrm{From}\mathrm{first}\mathrm{statement}\mathrm{other}\mathrm{decimal}=\frac{1.4}{2}=0.7 \\ \mathrm{Now}\mathrm{let}\mathrm{the}\mathrm{third}\mathrm{decimal}\mathrm{is}\mathrm{x} \\ \mathrm{So}\mathrm{according}\mathrm{to}\mathrm{the}\mathrm{question}, \\ 1.4+0.7+\mathrm{x}=4.8 \\ \mathrm{x}=4.8-2.1 \\ =2.7 \\ \mathrm{So}\mathrm{two}\mathrm{decimals}\mathrm{are}0.7\mathrm{and}2.7 \end{gathered}$$