A vendor mixed 6.3 kg of peanuts, 2100 g of dates, 3.6 kg of cashews and packed the mixture equally into two and half dozen packets. The weight (in grams) of each packet is

Correct option is A

Given
Weight of peanuts = 6.3 kg = 6300 g
Weight of dates = 2100 g
Weight of cashews = 3.6 kg = 3600 g
Total packets = 2.5 dozen

Formula Used
1 kg = 1000 g
1 dozen = 12 items
Weight per packet  $$= \frac{\text{Total weight}}{\text{Total packets}}$$​​

Solution
Total weight = 6300 + 2100 + 3600 = 12000 g

Total packets = 2.5 × 12 = 30 packets

Weight of each packet = $$\frac{12000}{30}$$​​

Weight of each packet = 400 g

So the correct answer is (a)