Question
Barbara bought 6 files and staplers altogether. The mass of each file was 3 g. The mass of each stapler was 10 g. The files and staplers weigned 39 g in total.
(a) How many files did Barbara buy?
(b) How many staplers did Barbara buy?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Barbara bought 6 files and staplers altogether. The mass of each file was 3 g. The mass of each stapler was 10 g. The files and staplers weigned 39 g in total.
(a) How many files did Barbara buy?
(b) How many staplers did Barbara buy?