A chain of departmental stores has outlets in Delhi, Mumbai, Bengaluru and Kolkata. The sales are categorized by its three departments – ‘Apparel’, ‘Electronics’, and ‘HomeDecor’. An Accountant has been asked to prepare a summary of the 2018 and 2019 sales amounts for an internal report. He has collated partial information and prepared the following table. Sales Amounts (Crore Rupees) | Delhi 2018 | Delhi 2019 | Mumbai 2018 | Mumbai 2019 | Bengaluru 2018 | Bengaluru 2019 | Kolkata 2018 | Kolkata 2019 Apparels | - | - | - | - | - | - | - | 54 Electronics | 78 | 98 | 82 | 102 | 90 | 70 | 80 | 100 Home Décor | - | 100 | - | 72 | - | 80 | - | 54 The following additional information is known. • The sales amounts in the Apparel departments were the same for Delhi and Kolkata in 2018. • The sales amounts in the Apparel departments were the same for Mumbai and Bengaluru in 2018. This sales amount matched the sales amount in the Apparel department for Delhi in 2019. • The sales amounts in the HomeDecor departments were the same for Mumbai and Kolkata in 2018. • The sum of the sales amounts of four Electronics departments increased by the same amount as the sum of the sales amounts of four Apparel departments from 2018 to 2019. • The total sales amounts of the four HomeDecor departments increased by Rs 70 Crores from 2018 to 2019. • The sales amounts in the HomeDecor departments of Delhi and Bengaluru each increased by Rs 20 Crores from 2018 to 2019. • The sales amounts in the Apparel departments of Delhi and Bengaluru each increased by the same amount in 2019 from 2018. • The sales amounts in the Apparel departments of Mumbai and Kolkata also each increased by the same amount in 2019 from 2018. • The sales amounts in the Apparel departments of Delhi, Kolkata and Bengaluru in 2019 followed an Arithmetic Progression.