Emily used a total of 10 gold streamers and silver streamers. Each gold streamer was 2 m long. Each silver streamer was 4 m long. The total length of streamers she used was 26 m. How many silver streamers did she use?
If all the streamers are gold,
total length of streamers
= 10 x 4
= 40 m
Difference between the length of 1 gold streamer and 1 silver streamer
= 4 - 2
= 2
Difference between the length of all the gold streamers and all the silver streamers
= 40 - 26
= 14 m
Number of gold streamers
= 14 ÷ 2
= 7
Number of silver streamers
= 10 - 7
= 3
Answer(s): 3
