Answer:
Hence, a blue and a green ribbon will be collected at the 3/4 marker.
Step-by-step explanation:
During a bike challenge, riders have to collect various colored ribbons.
Each 1/2 mile they collect a red ribbon, each 1/8 mile they collect a green ribbon, and each 1/4 mile they collect a blue ribbon.
We are asked to find which colors of ribbon is collected at the 3/4 mile marker.
since 1 red ribbon is collected at 1/2 mile the next ribbon will be collected at 1 mile.
so he will not reach at the 3/4 marker to get a red ribbon
Hence, no red ribbon will be collected at 3/4 marker.
Now each green ribbon is collected at 1/8 mile.
since, 1/8+1/8+1/8+1/8+1/8+1/8=6/8=3/4
i.e. adding 1/8 6 times we get 3/4
Hence, he will reach the 3/4 marker and get a green ribbon.
Now we are given that each blue marker is obtained at 1/4 marker.
since 1/4+1/4+1/4=3/4
Hence, a blue ribbon will be given at a 3/4 marker.
Hence, a blue and a green ribbon will be collected at the 3/4 marker.
