Answer :
This question can be solved by the unitary method.
7500 grams = 7.5 Kg
7.5 Kg costs $19.20
1 Kg costs $19.20/7.5 = $2.56
7500 grams = 7.5 Kg
7.5 Kg costs $19.20
1 Kg costs $19.20/7.5 = $2.56
[1000 grams = 1 kilogram
⇒ 7500 grams = 7.5 kilograms]
7.5 kilograms cost $19.20
1 kilogram costs (19.20 × 1) / 7.5
= $ 2.56
So, each kilogram costs $ 2.56
⇒ 7500 grams = 7.5 kilograms]
7.5 kilograms cost $19.20
1 kilogram costs (19.20 × 1) / 7.5
= $ 2.56
So, each kilogram costs $ 2.56