TOMS FABRIC BRIANS FABRIC

let number of fabric be T

hence PT=C

solve for T

15T=40

T=2/2/3=2.667

there for Tom's fabric T=C/P P graduation per gown

Brains fabric will be 2/2/3=C/F where F is graduation per pound

T=10/2/3/F where F=4

making C the subject

C=2/2/3 *4

=10/2/3

iii. point of intersection is T=2/2/3

iv. point of intersection indicates number of fabric is equal at certain cost and order per unit.

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