Which two numbers, from amongst the given options, should be interchanged to make the given equation correct?
14 + 39 − ($\sqrt{144}$ ÷ 4) + (5 × 3) − 6 = 63
Answer & explanation
Correct answer: option 3
14 + 39 − ($\sqrt{144}$ ÷ 4) + (5 × 3) − 6 = 63
After interchange 4 and 3
14 + 39 - ($\sqrt{144}$ ÷ 3 ) + (5 × 4) − 6
Apply BODMAS
14 + 39 - 12 ÷ 3 + (5 × 4) − 6
14 + 39 - 4 + (5 × 4) − 6
14 + 39 - 4 + 20 - 6
73 - 10
63