The table shows the airmail rates for sending letters and postcards to some countries.

Destination	Letters		Postcards
	Mass	Postage Rate	Per piece
Korea, Japan	1st 40 g	$1.20	$0.60
	Every additional 10 g or part thereof	$0.20

How much did Fanny pay for the postage when she sent a letter which weighed 94 g and 8 postcards to Korea by airmail?
Remaining mass that Fanny had to pay for the letter as it was more than 40 g
= 94 - 40
= 54 g

Number of sets of additional 10 g of the letter that Fanny had to pay for 
= 54 ÷ 10
= 5 r 4

Total number of sets of additional 10 g of the letter that Fanny had to pay for 
= 5 + 1
= 6

Amount that Fanny had to pay for the sets of additional 10 g of the letter
= 6 x 0.20
= $1.20

Total amount that Fanny had to pay for the letter
= 1.20 + 1.20
= $2.40

Amount that Fanny had to pay for the 8 postcards
= 8 x 0.60
= $4.80

Total amount that Fanny paid
= 2.40 + 4.80
= $7.20

Answer(s): $7.20