Question

5+{2[(48-40)÷4+(2×5)]}

Answer 1

The given expression is

$5+\left\{ 2\left[\left(48-40\right)\div4+\left(2\times5\right)\right]\right\} ​$

First, we solve parenthesis, the operation inside of them

$5+\left\{ 2\left[8\div4+10\right]\right\} ​$

Second, we solve brackets

$5+\left\{ 2\left[2+10\right]\right\} ​\rightarrow5+\left\{ 2\left[12\right]\right\} \rightarrow5+\left\lbrace 24\right\rbrace \rightarrow5+24$

Finally, we sum

$29$

Therefore, the answer is 29.