Which two numbers should be interchanged to make the given equation correct?
79 – 43 + (23 + 75) × 3 – (30 ÷ 15) × 4 = 175
(NOTE: Numbers must be interchanged and not the constituent digits e.g. if 2 and 3 are to be interchanged in the equation 43 × 3 + 4 ÷ 2, then interchanged equation is 43 × 2 + 4 ÷ 3)
1
3 and 4
2
23 and 43
3
75 and 30
4
75 and 79