Question

if 2 1/2 kg of biscuit cost $15 , find the cost of 2kg of biscuits
It is a easy question btw ;-;

Answer 1

Step-by-step explanation:

$2 \times \dfrac{1}{2} \: kg \\ \\ = \frac{5}{2} kg \\ \\ = 2.5kg$kg of biscuit cost $ 15 .

We have been asked to find the cost of 2Kg of biscuits.

First Let's find the cost of 1Kg biscuit

$\tt\implies \: cost \: of \: 1 \: kg \: biscuit \: = \dfrac{15}{2.5} \\ \\ \: \: \tt\implies \: cost \: of \: 1 \: kg \: biscuit \: = 6 \: dollar$

Then Cost of 2Kg biscuit would be

$\tt\implies \: cost \: of \: 1kg \: biscuit \: = 2 \times 6 \\ \\ \tt\implies \: cost \: of \: 1kg \: biscuit \: = \: 12 \: dollar$

Hence, the cost of 2 kg biscuit is 12$ .

Answer 2

2 kg of biscuit is $10