Q:

If - stands for division, + for multiplication, ÷ for subtraction and × for addition, then which one of the following equations is correct? 

• 1
  19 ÷ 5 + 4 – 2 x 4 = 13
• 2
  19 ÷ 5 + 4 + 2 ÷ 4 = 20
• 3
  19 + 5 – 4 x 2 ÷ 4 = 1
• 4
  19 x 5 – 4 ÷ 2 + 4 = 16