Study the following table and answer the questions.

Number of machines (in thousands) sold by dealers A, B, C, D and E during six months of 2022.

The ratio of total number of machines sold by dealer A in Jan., Feb. and May to the total number of machines sold by dealers B and D in June is?

169 : 140

Sale by A in (Jan. + Feb. + May) = (620 + 640 + 430) = 1690

Sale by B in June = 620 + 780 = 1400

Required ratio = 1690 : 1400 = 169 : 140