Q:

By interchanging the given two signs and numbers which of the following equation will be correct?
 × and +, 6 and 4

• 1
  3 × 9 – 4 ÷ 2 + 6 = 8
• 2
  8 × 6 + 4 ÷ 2 – 5 = –5
• 3
  8 – 3 × 6 + 4 ÷ 1 = 18
• 4
  7 × 6 – 4 + 9 ÷ 3 = –7