There are 40 fruits in a basket which includes banana, apple, mango and orange. If the average weight of the fruits is 60, 120, 180 and 90 grams respectively and the quantity of fruits are in a ratio of 1:2:3:4 find the total weight of fruits in the basket.

Correct Answer: 4.6 kg
Total number of respective fruits: Banana = (1 / 10) * 40 = 4 Apple = (2 / 100) * 40 = 8 Mango = (3 / 10) * 40 = 12 Orange = (4 / 10) * 40 = 16 Total weight of the fruits: 4 * 60 + 8 * 120 + 12 * 180 + 16 * 90 = 240 + 960 + 2160 + 1440 = 4600 = 4.6 kg