£ 84
Step-by-step explanation:
Step 1:
Here totally 5 pieces each of 65 cm and 2 pieces of 110 cm woods are needed. Then the total sum is
[tex](5*65)+(2*110) = 545[/tex] cm
Step 2:
100 cm wood costs £ 21
150 cm wood costs £ 25
180 cm wood costs £ 28
To be economical 3 180 cm woods are sufficient for Jerry. ([tex]3*180 = 540[/tex] cm )
Therefore Jerry should pay a total cost of £ 84 and it is the lowest amount that Jerry could pay.
