Question

In a Bastet filled with tiles, the ratio of red tiles to green tiles is 7:3. Katrina wants to make the same tile mix with 161 red tiles. How many green titles should Katrina use?

Answer 1

69 green tiles

Explanation:

Total proportion based on ratio of red to green tiles, 7:3=7+3=10

Fraction of red tiles=7/10=0.7

Fraction of green tiles=3/10=0.3

If red tiles of 161 represent 0.7, the whole surface requires

161/0.7=230 total tiles in Bastet filled

Green tiles=Total number of tiles- red tiles=230-161 green tiles=69 green tiles

Therefore, Katrina requires 69 green tiles

Ans=69 green tiles