If × stands for - , ÷ stands for + , + stands for ÷ and - stands for ×, then
15 - 5 ÷ 5 × 20 + 10 is equal to
Answer & explanation
Correct answer: option 4
15 - 5 ÷ 5 × 20 + 10
= 15 × 5+ 5 - \(\frac{20}{10}\)
= 75 + 5 - \(\frac{20}{10}\)
= 75 + 5 - 2
= 80 - 2
= 78