Sam bought 350 grams of potatoes, 270 grams of onions, a quarter of a kilogram of tomatoes and 200 grams of capsicum. How many kilograms of vegetables does he have in total?

The correct option is D 1.07 kilograms
We know that, 1 kg = 1000 g
Therefore, $1g=\frac{1}{1000}kg=0.001kg$
Quarter of a kilogram is $\frac{1}{4}kg=\frac{1000}{4}=250g$
Total weight of vegetables in gram = 350 g + 270 g + 250 g + 200 g = 1070 g
i.e., $1070g=0.001\times 1070kg=1.07kilograms$