Which two groups of numbers should be interchanged to balance the given equation?
284 ÷ 6 + 144 × 4 − 326 ÷ 163 × 125 = 27 × 25 + 30 × 4
1
(284 and 326), and (6 and 4)
2
(6 and 4), and (27 and 30)
3
(284 and 144), and (25 and 30)
4
(284 and 144), and (25 and 4)