Answer: There are 4 flowerpots in which there will be 2 petunias , 4 carnations, 5 pansies.
Explanation:
Since we have given that
Number of petunias = 8
Number of carnations = 16
Number of pansies = 20
We need to plants the same number of each type of flower in the flower pots.
so, Greatest number of flower = H.C.F of 8 , 16, 20 = 4
So, there are 4 flowerpots she will use .
Number of petunias in each flower pot =

Number of carnations in each flower pot =

Number of pansies in each flower pot =

Hence, there are 4 flowerpots in which there will be 2 petunias , 4 carnations, 5 pansies.