Question

100 g of fish cost 70¢.

€
(a) Calculate the cost of 180 g.
(b) Mr Tan paid $2.45 for some fish. How
many grams of fish did he buy?

Answer 1

a) 100/70 = 1.43 cents for 1 g of fish

180 x 1.43 = 257.4 pennies = 2.57 dollars

b) 2.45 dollars = 245 pennies

245/1.43 = 141.33.... = 141 g

Explanation: