Question:
Tick (✓) the correct answer
$\left(1 \frac{3}{10}\right)^{3}=?$
(a) $1 \frac{27}{1000}$
(b) $2 \frac{27}{1000}$
(c) $2 \frac{197}{1000}$
(d) none of these
Solution:
(c) $2 \frac{197}{1000}$
$\left(1 \frac{3}{10}\right)^{3}=\left(\frac{13}{10}\right)^{3}=\frac{(13)^{3}}{(10)^{3}}=\frac{(13 \times 13 \times 13)}{(10 \times 10 \times 10)}$
$\left(1 \frac{3}{10}\right)^{3}=\frac{2197}{1000}=2 \frac{197}{1000}$
$\therefore\left(1 \frac{3}{10}\right)^{3}=2 \frac{197}{1000}$