Question

The product of two decimals is $\mathrm{1.824.}$ If one of them is $0.64,$ find the other.

Answer 1

Product of the given decimals $=1.824$

One decimal $=0.64$

$\therefore 0.64\times$ other decimal $=1.824$

The other decimal $=1.824÷0.64$

$=\frac{1.824}{0.64}$

$=\frac{1.824\times 100}{0.64\times \times 100}$ [on multiplying numerator and denominator by $100$]

$=\frac{182.4}{64}$

$=2.85$

Hence, the other decimal is $\mathrm{2.85.}$