Question

The value of $8\times 2\frac{4}{5}+8\times 3\frac{1}{5}$ is

• A. $\frac{8}{5}$
• B. $24$
• C. $48$
• D. $-48$

Answer 1

The correct option is C $48$

$8\times 2\frac{4}{5}+8\times 3\frac{1}{5}$

$=8\times \frac{14}{5}+8\times \frac{16}{5}$

$=\frac{8}{5}\times 14+\frac{8}{5}\times 16$

$=\frac{8}{5}\times (14+16)$ ($\because$ distributive property)

$=\frac{8}{5}\times 30$

$=8\times 6$

$=48$.