Question 54

What is the value of $$5 + [12 + 3 \times \left\{5 + (6 \times 3 - 5)\right\}]$$?

Solution

= $$5 + [12 + 3 \times \left\{5 + (6 \times 3 - 5)\right\}]$$

= $$5+[12+3\times\left\{5+(18-5)\right\}]$$

= $$5+[12+3\times\left\{5+13\right\}]$$

= $$5+[12+3\times18]$$
= $$5+[12+54]$$
= $$5+66$$

= 71

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