Question 100

$$(- 18)[36 \div \left\{ 7 - (- 2)\right\}] \div (- 4) \left\{ 19 - (- 3) \times (- 5)\right\} = ?$$

Solution

$$(- 18)[36 \div \left\{ 7 - (- 2)\right\}] \div (- 4) \left\{ 19 - (- 3) \times (- 5)\right\}$$

Solve small, curly and big bracket respectively as per BODMAS rule.

$$(- 18)[36 \div 9] \div (- 4) \left\{ 19 - 15\right\}$$

$$[(- 18)\times(4)] \div [(- 4)\times \left\{ 4\right\}]$$

$$18 \div 4$$

4.5

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