Question

A 4 Kg chicken is purchased at £3.30 per Kg. 15% is lost during preparation and a further 20% is lost during cooking of the chicken for a casserole. Calculate the cost of 150g of cooked chicken used for the casserole.

Answer 1

$\huge \bf \underline{ \underline{Solution}}$

Given:-

1. A 4kg chicken
2. £ 3.30 is the cost of the chicken per kg
3. 15% of it's weight is lost while preparing it
4. 20% lost further while cooking.

Calculations:-

15% of 4kg,

$\frac{15}{100} \times 4kg \\ = 0.6kg$

Therefore, it lessens to 3.4kg

Further 20% decrease,

$\frac{20}{100} \times 3.4kg \\ = 0.68kg$

Therefore, it decreases to 2.72kg

So cooked chicken weighing 2.72kg costs,

= 4 * £3.30

= £13.2

Now we use Unitary Method to find the cost of 150g cooked chicken... Considering the cost to be £x

$\frac{2720}{£13.2} = \frac{150}{x} \\ = x = £1.373$

Final Answer:-

$\huge\mathtt{£1.373}$